Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

9 files changed, 5927 insertions, 0 deletions

diff --git a/testing/xpcshell/node-http2/lib/http.js b/testing/xpcshell/node-http2/lib/http.js
new file mode 100644
index 0000000000..5690bb9e79
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/http.js
@@ -0,0 +1,1276 @@
+// Public API
+// ==========
+
+// The main governing power behind the http2 API design is that it should look very similar to the
+// existing node.js [HTTPS API][1] (which is, in turn, almost identical to the [HTTP API][2]). The
+// additional features of HTTP/2 are exposed as extensions to this API. Furthermore, node-http2
+// should fall back to using HTTP/1.1 if needed. Compatibility with undocumented or deprecated
+// elements of the node.js HTTP/HTTPS API is a non-goal.
+//
+// Additional and modified API elements
+// ------------------------------------
+//
+// - **Class: http2.Endpoint**: an API for using the raw HTTP/2 framing layer. For documentation
+//   see [protocol/endpoint.js](protocol/endpoint.html).
+//
+// - **Class: http2.Server**
+//   - **Event: 'connection' (socket, [endpoint])**: there's a second argument if the negotiation of
+//     HTTP/2 was successful: the reference to the [Endpoint](protocol/endpoint.html) object tied to the
+//     socket.
+//
+// - **http2.createServer(options, [requestListener])**: additional option:
+//   - **log**: an optional [bunyan](https://github.com/trentm/node-bunyan) logger object
+//
+// - **Class: http2.ServerResponse**
+//   - **response.push(options)**: initiates a server push. `options` describes the 'imaginary'
+//     request to which the push stream is a response; the possible options are identical to the
+//     ones accepted by `http2.request`. Returns a ServerResponse object that can be used to send
+//     the response headers and content.
+//
+// - **Class: http2.Agent**
+//   - **new Agent(options)**: additional option:
+//     - **log**: an optional [bunyan](https://github.com/trentm/node-bunyan) logger object
+//   - **agent.sockets**: only contains TCP sockets that corresponds to HTTP/1 requests.
+//   - **agent.endpoints**: contains [Endpoint](protocol/endpoint.html) objects for HTTP/2 connections.
+//
+// - **http2.request(options, [callback])**:
+//   - similar to http.request
+//
+// - **http2.get(options, [callback])**:
+//   - similar to http.get
+//
+// - **Class: http2.ClientRequest**
+//   - **Event: 'socket' (socket)**: in case of an HTTP/2 incoming message, `socket` is a reference
+//     to the associated [HTTP/2 Stream](protocol/stream.html) object (and not to the TCP socket).
+//   - **Event: 'push' (promise)**: signals the intention of a server push associated to this
+//     request. `promise` is an IncomingPromise. If there's no listener for this event, the server
+//     push is cancelled.
+//   - **request.setPriority(priority)**: assign a priority to this request. `priority` is a number
+//     between 0 (highest priority) and 2^31-1 (lowest priority). Default value is 2^30.
+//
+// - **Class: http2.IncomingMessage**
+//   - has two subclasses for easier interface description: **IncomingRequest** and
+//     **IncomingResponse**
+//   - **message.socket**: in case of an HTTP/2 incoming message, it's a reference to the associated
+//     [HTTP/2 Stream](protocol/stream.html) object (and not to the TCP socket).
+//
+// - **Class: http2.IncomingRequest (IncomingMessage)**
+//   - **message.url**: in case of an HTTP/2 incoming request, the `url` field always contains the
+//     path, and never a full url (it contains the path in most cases in the HTTPS api as well).
+//   - **message.scheme**: additional field. Mandatory HTTP/2 request metadata.
+//   - **message.host**: additional field. Mandatory HTTP/2 request metadata. Note that this
+//     replaces the old Host header field, but node-http2 will add Host to the `message.headers` for
+//     backwards compatibility.
+//
+// - **Class: http2.IncomingPromise (IncomingRequest)**
+//   - contains the metadata of the 'imaginary' request to which the server push is an answer.
+//   - **Event: 'response' (response)**: signals the arrival of the actual push stream. `response`
+//     is an IncomingResponse.
+//   - **Event: 'push' (promise)**: signals the intention of a server push associated to this
+//     request. `promise` is an IncomingPromise. If there's no listener for this event, the server
+//     push is cancelled.
+//   - **promise.cancel()**: cancels the promised server push.
+//   - **promise.setPriority(priority)**: assign a priority to this push stream. `priority` is a
+//     number between 0 (highest priority) and 2^31-1 (lowest priority). Default value is 2^30.
+//
+// API elements not yet implemented
+// --------------------------------
+//
+// - **Class: http2.Server**
+//   - **server.maxHeadersCount**
+//
+// API elements that are not applicable to HTTP/2
+// ----------------------------------------------
+//
+// The reason may be deprecation of certain HTTP/1.1 features, or that some API elements simply
+// don't make sense when using HTTP/2. These will not be present when a request is done with HTTP/2,
+// but will function normally when falling back to using HTTP/1.1.
+//
+// - **Class: http2.Server**
+//   - **Event: 'checkContinue'**: not in the spec
+//   - **Event: 'upgrade'**: upgrade is deprecated in HTTP/2
+//   - **Event: 'timeout'**: HTTP/2 sockets won't timeout because of application level keepalive
+//     (PING frames)
+//   - **Event: 'connect'**: not yet supported
+//   - **server.setTimeout(msecs, [callback])**
+//   - **server.timeout**
+//
+// - **Class: http2.ServerResponse**
+//   - **Event: 'close'**
+//   - **Event: 'timeout'**
+//   - **response.writeContinue()**
+//   - **response.writeHead(statusCode, [reasonPhrase], [headers])**: reasonPhrase will always be
+//     ignored since [it's not supported in HTTP/2][3]
+//   - **response.setTimeout(timeout, [callback])**
+//
+// - **Class: http2.Agent**
+//   - **agent.maxSockets**: only affects HTTP/1 connection pool. When using HTTP/2, there's always
+//     one connection per host.
+//
+// - **Class: http2.ClientRequest**
+//   - **Event: 'upgrade'**
+//   - **Event: 'connect'**
+//   - **Event: 'continue'**
+//   - **request.setTimeout(timeout, [callback])**
+//   - **request.setNoDelay([noDelay])**
+//   - **request.setSocketKeepAlive([enable], [initialDelay])**
+//
+// - **Class: http2.IncomingMessage**
+//   - **Event: 'close'**
+//   - **message.setTimeout(timeout, [callback])**
+//
+// [1]: https://nodejs.org/api/https.html
+// [2]: https://nodejs.org/api/http.html
+// [3]: https://tools.ietf.org/html/rfc7540#section-8.1.2.4
+
+// Common server and client side code
+// ==================================
+
+var net = require('net');
+var url = require('url');
+var util = require('util');
+var EventEmitter = require('events').EventEmitter;
+var PassThrough = require('stream').PassThrough;
+var Readable = require('stream').Readable;
+var Writable = require('stream').Writable;
+var protocol = require('./protocol');
+var Endpoint = protocol.Endpoint;
+var http = require('http');
+var https = require('https');
+
+exports.STATUS_CODES = http.STATUS_CODES;
+exports.IncomingMessage = IncomingMessage;
+exports.OutgoingMessage = OutgoingMessage;
+exports.protocol = protocol;
+
+var deprecatedHeaders = [
+  'connection',
+  'host',
+  'keep-alive',
+  'proxy-connection',
+  'transfer-encoding',
+  'upgrade'
+];
+
+// When doing NPN/ALPN negotiation, HTTP/1.1 is used as fallback
+var supportedProtocols = [protocol.VERSION, 'http/1.1', 'http/1.0'];
+
+// Ciphersuite list based on the recommendations of https://wiki.mozilla.org/Security/Server_Side_TLS
+// The only modification is that kEDH+AESGCM were placed after DHE and ECDHE suites
+var cipherSuites = [
+  'ECDHE-RSA-AES128-GCM-SHA256',
+  'ECDHE-ECDSA-AES128-GCM-SHA256',
+  'ECDHE-RSA-AES256-GCM-SHA384',
+  'ECDHE-ECDSA-AES256-GCM-SHA384',
+  'DHE-RSA-AES128-GCM-SHA256',
+  'DHE-DSS-AES128-GCM-SHA256',
+  'ECDHE-RSA-AES128-SHA256',
+  'ECDHE-ECDSA-AES128-SHA256',
+  'ECDHE-RSA-AES128-SHA',
+  'ECDHE-ECDSA-AES128-SHA',
+  'ECDHE-RSA-AES256-SHA384',
+  'ECDHE-ECDSA-AES256-SHA384',
+  'ECDHE-RSA-AES256-SHA',
+  'ECDHE-ECDSA-AES256-SHA',
+  'DHE-RSA-AES128-SHA256',
+  'DHE-RSA-AES128-SHA',
+  'DHE-DSS-AES128-SHA256',
+  'DHE-RSA-AES256-SHA256',
+  'DHE-DSS-AES256-SHA',
+  'DHE-RSA-AES256-SHA',
+  'kEDH+AESGCM',
+  'AES128-GCM-SHA256',
+  'AES256-GCM-SHA384',
+  'ECDHE-RSA-RC4-SHA',
+  'ECDHE-ECDSA-RC4-SHA',
+  'AES128',
+  'AES256',
+  'RC4-SHA',
+  'HIGH',
+  '!aNULL',
+  '!eNULL',
+  '!EXPORT',
+  '!DES',
+  '!3DES',
+  '!MD5',
+  '!PSK'
+].join(':');
+
+// Logging
+// -------
+
+// Logger shim, used when no logger is provided by the user.
+function noop() {}
+var defaultLogger = {
+  fatal: noop,
+  error: noop,
+  warn : noop,
+  info : noop,
+  debug: noop,
+  trace: noop,
+
+  child: function() { return this; }
+};
+
+// Bunyan serializers exported by submodules that are worth adding when creating a logger.
+exports.serializers = protocol.serializers;
+
+// IncomingMessage class
+// ---------------------
+
+function IncomingMessage(stream) {
+  // * This is basically a read-only wrapper for the [Stream](protocol/stream.html) class.
+  PassThrough.call(this);
+  stream.pipe(this);
+  this.socket = this.stream = stream;
+
+  this._log = stream._log.child({ component: 'http' });
+
+  // * HTTP/2.0 does not define a way to carry the version identifier that is included in the
+  //   HTTP/1.1 request/status line. Version is always 2.0.
+  this.httpVersion = '2.0';
+  this.httpVersionMajor = 2;
+  this.httpVersionMinor = 0;
+
+  // * `this.headers` will store the regular headers (and none of the special colon headers)
+  this.headers = {};
+  this.trailers = undefined;
+  this._lastHeadersSeen = undefined;
+
+  // * Other metadata is filled in when the headers arrive.
+  stream.once('headers', this._onHeaders.bind(this));
+  stream.once('end', this._onEnd.bind(this));
+}
+IncomingMessage.prototype = Object.create(PassThrough.prototype, { constructor: { value: IncomingMessage } });
+
+// [Request Header Fields](https://tools.ietf.org/html/rfc7540#section-8.1.2.3)
+// * `headers` argument: HTTP/2.0 request and response header fields carry information as a series
+//   of key-value pairs. This includes the target URI for the request, the status code for the
+//   response, as well as HTTP header fields.
+IncomingMessage.prototype._onHeaders = function _onHeaders(headers) {
+  // * Detects malformed headers
+  this._validateHeaders(headers);
+
+  // * Store the _regular_ headers in `this.headers`
+  for (var name in headers) {
+    if (name[0] !== ':') {
+      if (name === 'set-cookie' && !Array.isArray(headers[name])) {
+        this.headers[name] = [headers[name]];
+      } else {
+        this.headers[name] = headers[name];
+      }
+    }
+  }
+
+  // * The last header block, if it's not the first, will represent the trailers
+  var self = this;
+  this.stream.on('headers', function(headers) {
+    self._lastHeadersSeen = headers;
+  });
+};
+
+IncomingMessage.prototype._onEnd = function _onEnd() {
+  this.trailers = this._lastHeadersSeen;
+};
+
+IncomingMessage.prototype.setTimeout = noop;
+
+IncomingMessage.prototype._checkSpecialHeader = function _checkSpecialHeader(key, value) {
+  if ((typeof value !== 'string') || (value.length === 0)) {
+    this._log.error({ key: key, value: value }, 'Invalid or missing special header field');
+    this.stream.reset('PROTOCOL_ERROR');
+  }
+
+  return value;
+};
+
+IncomingMessage.prototype._validateHeaders = function _validateHeaders(headers) {
+  // * An HTTP/2.0 request or response MUST NOT include any of the following header fields:
+  //   Connection, Host, Keep-Alive, Proxy-Connection, Transfer-Encoding, and Upgrade. A server
+  //   MUST treat the presence of any of these header fields as a stream error of type
+  //   PROTOCOL_ERROR.
+  //  If the TE header is present, it's only valid value is 'trailers'
+  for (var i = 0; i < deprecatedHeaders.length; i++) {
+    var key = deprecatedHeaders[i];
+    if (key in headers || (key === 'te' && headers[key] !== 'trailers')) {
+      this._log.error({ key: key, value: headers[key] }, 'Deprecated header found');
+      this.stream.reset('PROTOCOL_ERROR');
+      return;
+    }
+  }
+
+  for (var headerName in headers) {
+    // * Empty header name field is malformed
+    if (headerName.length <= 1) {
+      this.stream.reset('PROTOCOL_ERROR');
+      return;
+    }
+    // * A request or response containing uppercase header name field names MUST be
+    //   treated as malformed (Section 8.1.3.5). Implementations that detect malformed
+    //   requests or responses need to ensure that the stream ends.
+    if(/[A-Z]/.test(headerName)) {
+      this.stream.reset('PROTOCOL_ERROR');
+      return;
+    }
+  }
+};
+
+// OutgoingMessage class
+// ---------------------
+
+function OutgoingMessage() {
+  // * This is basically a read-only wrapper for the [Stream](protocol/stream.html) class.
+  Writable.call(this);
+
+  this._headers = {};
+  this._trailers = undefined;
+  this.headersSent = false;
+  this.finished = false;
+
+  this.on('finish', this._finish);
+}
+OutgoingMessage.prototype = Object.create(Writable.prototype, { constructor: { value: OutgoingMessage } });
+
+OutgoingMessage.prototype._write = function _write(chunk, encoding, callback) {
+  if (this.stream) {
+    this.stream.write(chunk, encoding, callback);
+  } else {
+    this.once('socket', this._write.bind(this, chunk, encoding, callback));
+  }
+};
+
+OutgoingMessage.prototype._finish = function _finish() {
+  if (this.stream) {
+    if (this._trailers) {
+      if (this.request) {
+        this.request.addTrailers(this._trailers);
+      } else {
+        this.stream.trailers(this._trailers);
+      }
+    }
+    this.finished = true;
+    this.stream.end();
+  } else {
+    this.once('socket', this._finish.bind(this));
+  }
+};
+
+OutgoingMessage.prototype.setHeader = function setHeader(name, value) {
+  if (this.headersSent) {
+    return this.emit('error', new Error('Can\'t set headers after they are sent.'));
+  } else {
+    name = name.toLowerCase();
+    if (deprecatedHeaders.indexOf(name) !== -1) {
+      return this.emit('error', new Error('Cannot set deprecated header: ' + name));
+    }
+    this._headers[name] = value;
+  }
+};
+
+OutgoingMessage.prototype.removeHeader = function removeHeader(name) {
+  if (this.headersSent) {
+    return this.emit('error', new Error('Can\'t remove headers after they are sent.'));
+  } else {
+    delete this._headers[name.toLowerCase()];
+  }
+};
+
+OutgoingMessage.prototype.getHeader = function getHeader(name) {
+  return this._headers[name.toLowerCase()];
+};
+
+OutgoingMessage.prototype.addTrailers = function addTrailers(trailers) {
+  this._trailers = trailers;
+};
+
+OutgoingMessage.prototype.setTimeout = noop;
+
+OutgoingMessage.prototype._checkSpecialHeader = IncomingMessage.prototype._checkSpecialHeader;
+
+// Server side
+// ===========
+
+exports.Server = Server;
+exports.IncomingRequest = IncomingRequest;
+exports.OutgoingResponse = OutgoingResponse;
+exports.ServerResponse = OutgoingResponse; // for API compatibility
+
+// Forward events `event` on `source` to all listeners on `target`.
+//
+// Note: The calling context is `source`.
+function forwardEvent(event, source, target) {
+  function forward() {
+    var listeners = target.listeners(event);
+
+    var n = listeners.length;
+
+    // Special case for `error` event with no listeners.
+    if (n === 0 && event === 'error') {
+      var args = [event];
+      args.push.apply(args, arguments);
+
+      target.emit.apply(target, args);
+      return;
+    }
+
+    for (var i = 0; i < n; ++i) {
+      listeners[i].apply(source, arguments);
+    }
+  }
+
+  source.on(event, forward);
+
+  // A reference to the function is necessary to be able to stop
+  // forwarding.
+  return forward;
+}
+
+// Server class
+// ------------
+
+function Server(options) {
+  options = util._extend({}, options);
+
+  this._log = (options.log || defaultLogger).child({ component: 'http' });
+  this._settings = options.settings;
+
+  var start = this._start.bind(this);
+  var fallback = this._fallback.bind(this);
+
+  // HTTP2 over TLS (using NPN or ALPN)
+  if ((options.key && options.cert) || options.pfx) {
+    this._log.info('Creating HTTP/2 server over TLS');
+    this._mode = 'tls';
+    options.ALPNProtocols = supportedProtocols;
+    options.NPNProtocols = supportedProtocols;
+    options.ciphers = options.ciphers || cipherSuites;
+    options.honorCipherOrder = (options.honorCipherOrder != false);
+    this._server = https.createServer(options);
+    this._originalSocketListeners = this._server.listeners('secureConnection');
+    this._server.removeAllListeners('secureConnection');
+    this._server.on('secureConnection', function(socket) {
+      var negotiatedProtocol = socket.alpnProtocol || socket.npnProtocol;
+      // It's true that the client MUST use SNI, but if it doesn't, we don't care, don't fall back to HTTP/1,
+      // since if the ALPN negotiation is otherwise successful, the client thinks we speak HTTP/2 but we don't.
+      if (negotiatedProtocol === protocol.VERSION) {
+        start(socket);
+      } else {
+        fallback(socket);
+      }
+    });
+    this._server.on('request', this.emit.bind(this, 'request'));
+    this._server.on('connect', this.emit.bind(this, 'connect'));
+
+    forwardEvent('error', this._server, this);
+    forwardEvent('listening', this._server, this);
+  }
+
+  // HTTP2 over plain TCP
+  else if (options.plain) {
+    this._log.info('Creating HTTP/2 server over plain TCP');
+    this._mode = 'plain';
+    this._server = net.createServer(start);
+  }
+
+  // HTTP/2 with HTTP/1.1 upgrade
+  else {
+    this._log.error('Trying to create HTTP/2 server with Upgrade from HTTP/1.1');
+    throw new Error('HTTP1.1 -> HTTP2 upgrade is not yet supported. Please provide TLS keys.');
+  }
+
+  this._server.on('close', this.emit.bind(this, 'close'));
+}
+Server.prototype = Object.create(EventEmitter.prototype, { constructor: { value: Server } });
+
+// Starting HTTP/2
+Server.prototype._start = function _start(socket) {
+  var endpoint = new Endpoint(this._log, 'SERVER', this._settings);
+
+  this._log.info({ e: endpoint,
+                   client: socket.remoteAddress + ':' + socket.remotePort,
+                   SNI: socket.servername
+                 }, 'New incoming HTTP/2 connection');
+
+  endpoint.pipe(socket).pipe(endpoint);
+
+  var self = this;
+  endpoint.on('stream', function _onStream(stream) {
+    var response = new OutgoingResponse(stream);
+    var request = new IncomingRequest(stream);
+
+    // Some conformance to Node.js Https specs allows to distinguish clients:
+    request.remoteAddress = socket.remoteAddress;
+    request.remotePort = socket.remotePort;
+    request.connection = request.socket = response.socket = socket;
+
+    request.once('ready', self.emit.bind(self, 'request', request, response));
+  });
+
+  endpoint.on('error', this.emit.bind(this, 'clientError'));
+  socket.on('error', this.emit.bind(this, 'clientError'));
+
+  this.emit('connection', socket, endpoint);
+};
+
+Server.prototype._fallback = function _fallback(socket) {
+  var negotiatedProtocol = socket.alpnProtocol || socket.npnProtocol;
+
+  this._log.info({ client: socket.remoteAddress + ':' + socket.remotePort,
+                   protocol: negotiatedProtocol,
+                   SNI: socket.servername
+                 }, 'Falling back to simple HTTPS');
+
+  for (var i = 0; i < this._originalSocketListeners.length; i++) {
+    this._originalSocketListeners[i].call(this._server, socket);
+  }
+
+  this.emit('connection', socket);
+};
+
+// There are [3 possible signatures][1] of the `listen` function. Every arguments is forwarded to
+// the backing TCP or HTTPS server.
+// [1]: https://nodejs.org/api/http.html#http_server_listen_port_hostname_backlog_callback
+Server.prototype.listen = function listen(port, hostname) {
+  this._log.info({ on: ((typeof hostname === 'string') ? (hostname + ':' + port) : port) },
+                 'Listening for incoming connections');
+  this._server.listen.apply(this._server, arguments);
+
+  return this._server;
+};
+
+Server.prototype.close = function close(callback) {
+  this._log.info('Closing server');
+  this._server.close(callback);
+};
+
+Server.prototype.setTimeout = function setTimeout(timeout, callback) {
+  if (this._mode === 'tls') {
+    this._server.setTimeout(timeout, callback);
+  }
+};
+
+Object.defineProperty(Server.prototype, 'timeout', {
+  get: function getTimeout() {
+    if (this._mode === 'tls') {
+      return this._server.timeout;
+    } else {
+      return undefined;
+    }
+  },
+  set: function setTimeout(timeout) {
+    if (this._mode === 'tls') {
+      this._server.timeout = timeout;
+    }
+  }
+});
+
+// Overriding `EventEmitter`'s `on(event, listener)` method to forward certain subscriptions to
+// `server`.There are events on the `http.Server` class where it makes difference whether someone is
+// listening on the event or not. In these cases, we can not simply forward the events from the
+// `server` to `this` since that means a listener. Instead, we forward the subscriptions.
+Server.prototype.on = function on(event, listener) {
+  if ((event === 'upgrade') || (event === 'timeout')) {
+    return this._server.on(event, listener && listener.bind(this));
+  } else {
+    return EventEmitter.prototype.on.call(this, event, listener);
+  }
+};
+
+// `addContext` is used to add Server Name Indication contexts
+Server.prototype.addContext = function addContext(hostname, credentials) {
+  if (this._mode === 'tls') {
+    this._server.addContext(hostname, credentials);
+  }
+};
+
+Server.prototype.address = function address() {
+  return this._server.address()
+};
+
+function createServerRaw(options, requestListener) {
+  if (typeof options === 'function') {
+    requestListener = options;
+    options = {};
+  }
+
+  if (options.pfx || (options.key && options.cert)) {
+    throw new Error('options.pfx, options.key, and options.cert are nonsensical!');
+  }
+
+  options.plain = true;
+  var server = new Server(options);
+
+  if (requestListener) {
+    server.on('request', requestListener);
+  }
+
+  return server;
+}
+
+function createServerTLS(options, requestListener) {
+  if (typeof options === 'function') {
+    throw new Error('options are required!');
+  }
+  if (!options.pfx && !(options.key && options.cert)) {
+    throw new Error('options.pfx or options.key and options.cert are required!');
+  }
+  options.plain = false;
+
+  var server = new Server(options);
+
+  if (requestListener) {
+    server.on('request', requestListener);
+  }
+
+  return server;
+}
+
+// Exposed main interfaces for HTTPS connections (the default)
+exports.https = {};
+exports.createServer = exports.https.createServer = createServerTLS;
+exports.request = exports.https.request = requestTLS;
+exports.get = exports.https.get = getTLS;
+
+// Exposed main interfaces for raw TCP connections (not recommended)
+exports.raw = {};
+exports.raw.createServer = createServerRaw;
+exports.raw.request = requestRaw;
+exports.raw.get = getRaw;
+
+// Exposed main interfaces for HTTP plaintext upgrade connections (not implemented)
+function notImplemented() {
+    throw new Error('HTTP UPGRADE is not implemented!');
+}
+
+exports.http = {};
+exports.http.createServer = exports.http.request = exports.http.get = notImplemented;
+
+// IncomingRequest class
+// ---------------------
+
+function IncomingRequest(stream) {
+  IncomingMessage.call(this, stream);
+}
+IncomingRequest.prototype = Object.create(IncomingMessage.prototype, { constructor: { value: IncomingRequest } });
+
+// [Request Header Fields](https://tools.ietf.org/html/rfc7540#section-8.1.2.3)
+// * `headers` argument: HTTP/2.0 request and response header fields carry information as a series
+//   of key-value pairs. This includes the target URI for the request, the status code for the
+//   response, as well as HTTP header fields.
+IncomingRequest.prototype._onHeaders = function _onHeaders(headers) {
+  // * The ":method" header field includes the HTTP method
+  // * The ":scheme" header field includes the scheme portion of the target URI
+  // * The ":authority" header field includes the authority portion of the target URI
+  // * The ":path" header field includes the path and query parts of the target URI.
+  //   This field MUST NOT be empty; URIs that do not contain a path component MUST include a value
+  //   of '/', unless the request is an OPTIONS request for '*', in which case the ":path" header
+  //   field MUST include '*'.
+  // * All HTTP/2.0 requests MUST include exactly one valid value for all of these header fields. A
+  //   server MUST treat the absence of any of these header fields, presence of multiple values, or
+  //   an invalid value as a stream error of type PROTOCOL_ERROR.
+  this.method = this._checkSpecialHeader(':method'   , headers[':method']);
+  this.host   = this._checkSpecialHeader(':authority', headers[':authority']  );
+  if (this.method == "CONNECT") {
+    this.scheme = headers[':scheme'];
+    this.url    = headers[':path'];
+    if (!this.method || !this.host) {
+      // This is invalid, and we've sent a RST_STREAM, so don't continue processing
+      return;
+    }
+  } else {
+    this.scheme = this._checkSpecialHeader(':scheme'   , headers[':scheme']);
+    this.url    = this._checkSpecialHeader(':path'     , headers[':path']  );
+    if (!this.method || !this.scheme || !this.host || !this.url) {
+      // This is invalid, and we've sent a RST_STREAM, so don't continue processing
+      return;
+    }
+  }
+
+  // * Host header is included in the headers object for backwards compatibility.
+  this.headers.host = this.host;
+
+  // * Handling regular headers.
+  IncomingMessage.prototype._onHeaders.call(this, headers);
+
+  // * Signaling that the headers arrived.
+  this._log.info({ method: this.method, scheme: this.scheme, host: this.host,
+                   path: this.url, headers: this.headers }, 'Incoming request');
+  this.emit('ready');
+};
+
+// OutgoingResponse class
+// ----------------------
+
+function OutgoingResponse(stream) {
+  OutgoingMessage.call(this);
+
+  this._log = stream._log.child({ component: 'http' });
+
+  this.stream = stream;
+  this.statusCode = 200;
+  this.sendDate = true;
+
+  this.stream.once('headers', this._onRequestHeaders.bind(this));
+}
+OutgoingResponse.prototype = Object.create(OutgoingMessage.prototype, { constructor: { value: OutgoingResponse } });
+
+OutgoingResponse.prototype.writeHead = function writeHead(statusCode, reasonPhrase, headers) {
+  if (this.headersSent) {
+    return;
+  }
+
+  if (typeof reasonPhrase === 'string') {
+    this._log.warn('Reason phrase argument was present but ignored by the writeHead method');
+  } else {
+    headers = reasonPhrase;
+  }
+
+  for (var name in headers) {
+    this.setHeader(name, headers[name]);
+  }
+  headers = this._headers;
+
+  if (this.sendDate && !('date' in this._headers)) {
+    headers.date = (new Date()).toUTCString();
+  }
+
+  this._log.info({ status: statusCode, headers: this._headers }, 'Sending server response');
+
+  headers[':status'] = this.statusCode = statusCode;
+
+  this.stream.headers(headers);
+  if (statusCode >= 200) {
+    this.headersSent = true;
+  } else {
+    this._headers = {};
+  }
+};
+
+OutgoingResponse.prototype._implicitHeaders = function _implicitHeaders() {
+  if (!this.headersSent) {
+    this.writeHead(this.statusCode);
+  }
+};
+
+OutgoingResponse.prototype._implicitHeader = function() {
+  this._implicitHeaders();
+};
+
+OutgoingResponse.prototype.write = function write() {
+  this._implicitHeaders();
+  return OutgoingMessage.prototype.write.apply(this, arguments);
+};
+
+OutgoingResponse.prototype.end = function end() {
+  this.finshed = true;
+  this._implicitHeaders();
+  return OutgoingMessage.prototype.end.apply(this, arguments);
+};
+
+OutgoingResponse.prototype._onRequestHeaders = function _onRequestHeaders(headers) {
+  this._requestHeaders = headers;
+};
+
+OutgoingResponse.prototype.push = function push(options) {
+  if (typeof options === 'string') {
+    options = url.parse(options);
+  }
+
+  if (!options.path) {
+    throw new Error('`path` option is mandatory.');
+  }
+
+  var promise = util._extend({
+    ':method': (options.method || 'GET').toUpperCase(),
+    ':scheme': (options.protocol && options.protocol.slice(0, -1)) || this._requestHeaders[':scheme'],
+    ':authority': options.hostname || options.host || this._requestHeaders[':authority'],
+    ':path': options.path
+  }, options.headers);
+
+  this._log.info({ method: promise[':method'], scheme: promise[':scheme'],
+                   authority: promise[':authority'], path: promise[':path'],
+                   headers: options.headers }, 'Promising push stream');
+
+  var pushStream = this.stream.promise(promise);
+
+  return new OutgoingResponse(pushStream);
+};
+
+OutgoingResponse.prototype.altsvc = function altsvc(host, port, protocolID, maxAge, origin) {
+    if (origin === undefined) {
+        origin = "";
+    }
+    this.stream.altsvc(host, port, protocolID, maxAge, origin);
+};
+
+// Overriding `EventEmitter`'s `on(event, listener)` method to forward certain subscriptions to
+// `request`. See `Server.prototype.on` for explanation.
+OutgoingResponse.prototype.on = function on(event, listener) {
+  if (this.request && (event === 'timeout')) {
+    this.request.on(event, listener && listener.bind(this));
+  } else {
+    OutgoingMessage.prototype.on.call(this, event, listener);
+  }
+};
+
+// Client side
+// ===========
+
+exports.ClientRequest = OutgoingRequest; // for API compatibility
+exports.OutgoingRequest = OutgoingRequest;
+exports.IncomingResponse = IncomingResponse;
+exports.Agent = Agent;
+exports.globalAgent = undefined;
+
+function requestRaw(options, callback) {
+  if (typeof options === "string") {
+    options = url.parse(options);
+  }
+  options.plain = true;
+  if (options.protocol && options.protocol !== "http:") {
+    throw new Error('This interface only supports http-schemed URLs');
+  }
+  if (options.agent && typeof(options.agent.request) === 'function') {
+    var agentOptions = util._extend({}, options);
+    delete agentOptions.agent;
+    return options.agent.request(agentOptions, callback);
+  }
+  return exports.globalAgent.request(options, callback);
+}
+
+function requestTLS(options, callback) {
+  if (typeof options === "string") {
+    options = url.parse(options);
+  }
+  options.plain = false;
+  if (options.protocol && options.protocol !== "https:") {
+    throw new Error('This interface only supports https-schemed URLs');
+  }
+  if (options.agent && typeof(options.agent.request) === 'function') {
+    var agentOptions = util._extend({}, options);
+    delete agentOptions.agent;
+    return options.agent.request(agentOptions, callback);
+  }
+  return exports.globalAgent.request(options, callback);
+}
+
+function getRaw(options, callback) {
+  if (typeof options === "string") {
+    options = url.parse(options);
+  }
+  options.plain = true;
+  if (options.protocol && options.protocol !== "http:") {
+    throw new Error('This interface only supports http-schemed URLs');
+  }
+  if (options.agent && typeof(options.agent.get) === 'function') {
+    var agentOptions = util._extend({}, options);
+    delete agentOptions.agent;
+    return options.agent.get(agentOptions, callback);
+  }
+  return exports.globalAgent.get(options, callback);
+}
+
+function getTLS(options, callback) {
+  if (typeof options === "string") {
+    options = url.parse(options);
+  }
+  options.plain = false;
+  if (options.protocol && options.protocol !== "https:") {
+    throw new Error('This interface only supports https-schemed URLs');
+  }
+  if (options.agent && typeof(options.agent.get) === 'function') {
+    var agentOptions = util._extend({}, options);
+    delete agentOptions.agent;
+    return options.agent.get(agentOptions, callback);
+  }
+  return exports.globalAgent.get(options, callback);
+}
+
+// Agent class
+// -----------
+
+function Agent(options) {
+  EventEmitter.call(this);
+  this.setMaxListeners(0);
+
+  options = util._extend({}, options);
+
+  this._settings = options.settings;
+  this._log = (options.log || defaultLogger).child({ component: 'http' });
+  this.endpoints = {};
+
+  // * Using an own HTTPS agent, because the global agent does not look at `NPN/ALPNProtocols` when
+  //   generating the key identifying the connection, so we may get useless non-negotiated TLS
+  //   channels even if we ask for a negotiated one. This agent will contain only negotiated
+  //   channels.
+  options.ALPNProtocols = supportedProtocols;
+  options.NPNProtocols = supportedProtocols;
+  this._httpsAgent = new https.Agent(options);
+
+  this.sockets = this._httpsAgent.sockets;
+  this.requests = this._httpsAgent.requests;
+}
+Agent.prototype = Object.create(EventEmitter.prototype, { constructor: { value: Agent } });
+
+Agent.prototype.request = function request(options, callback) {
+  if (typeof options === 'string') {
+    options = url.parse(options);
+  } else {
+    options = util._extend({}, options);
+  }
+
+  options.method = (options.method || 'GET').toUpperCase();
+  options.protocol = options.protocol || 'https:';
+  options.host = options.hostname || options.host || 'localhost';
+  options.port = options.port || 443;
+  options.path = options.path || '/';
+
+  if (!options.plain && options.protocol === 'http:') {
+    this._log.error('Trying to negotiate client request with Upgrade from HTTP/1.1');
+    this.emit('error', new Error('HTTP1.1 -> HTTP2 upgrade is not yet supported.'));
+  }
+
+  var request = new OutgoingRequest(this._log);
+
+  if (callback) {
+    request.on('response', callback);
+  }
+
+  var key = [
+    !!options.plain,
+    options.host,
+    options.port
+  ].join(':');
+  var self = this;
+
+  // * There's an existing HTTP/2 connection to this host
+  if (key in this.endpoints) {
+    var endpoint = this.endpoints[key];
+    request._start(endpoint.createStream(), options);
+  }
+
+  // * HTTP/2 over plain TCP
+  else if (options.plain) {
+    endpoint = new Endpoint(this._log, 'CLIENT', this._settings);
+    endpoint.socket = net.connect({
+      host: options.host,
+      port: options.port,
+      localAddress: options.localAddress
+    });
+
+    endpoint.socket.on('error', function (error) {
+      self._log.error('Socket error: ' + error.toString());
+      request.emit('error', error);
+    });
+
+    endpoint.on('error', function(error){
+      self._log.error('Connection error: ' + error.toString());
+      request.emit('error', error);
+    });
+
+    this.endpoints[key] = endpoint;
+    endpoint.pipe(endpoint.socket).pipe(endpoint);
+    request._start(endpoint.createStream(), options);
+  }
+
+  // * HTTP/2 over TLS negotiated using NPN or ALPN, or fallback to HTTPS1
+  else {
+    var started = false;
+    var createAgent = hasAgentOptions(options);
+    options.ALPNProtocols = supportedProtocols;
+    options.NPNProtocols = supportedProtocols;
+    options.servername = options.host; // Server Name Indication
+    options.ciphers = options.ciphers || cipherSuites;
+    if (createAgent) {
+      options.agent = new https.Agent(options);
+    } else if (options.agent == null) {
+      options.agent = this._httpsAgent;
+    }
+    var httpsRequest = https.request(options);
+
+    httpsRequest.on('error', function (error) {
+      self._log.error('Socket error: ' + error.toString());
+      self.removeAllListeners(key);
+      request.emit('error', error);
+    });
+
+    httpsRequest.on('socket', function(socket) {
+      var negotiatedProtocol = socket.alpnProtocol || socket.npnProtocol;
+      if (negotiatedProtocol != null) { // null in >=0.11.0, undefined in <0.11.0
+        negotiated();
+      } else {
+        socket.on('secureConnect', negotiated);
+      }
+    });
+
+    function negotiated() {
+      var endpoint;
+      var negotiatedProtocol = httpsRequest.socket.alpnProtocol || httpsRequest.socket.npnProtocol;
+      if (negotiatedProtocol === protocol.VERSION) {
+        httpsRequest.socket.emit('agentRemove');
+        unbundleSocket(httpsRequest.socket);
+        endpoint = new Endpoint(self._log, 'CLIENT', self._settings);
+        endpoint.socket = httpsRequest.socket;
+        endpoint.pipe(endpoint.socket).pipe(endpoint);
+      }
+      if (started) {
+        // ** In the meantime, an other connection was made to the same host...
+        if (endpoint) {
+          // *** and it turned out to be HTTP2 and the request was multiplexed on that one, so we should close this one
+          endpoint.close();
+        }
+        // *** otherwise, the fallback to HTTPS1 is already done.
+      } else {
+        if (endpoint) {
+          self._log.info({ e: endpoint, server: options.host + ':' + options.port },
+                         'New outgoing HTTP/2 connection');
+          self.endpoints[key] = endpoint;
+          self.emit(key, endpoint);
+        } else {
+          self.emit(key, undefined);
+        }
+      }
+    }
+
+    this.once(key, function(endpoint) {
+      started = true;
+      if (endpoint) {
+        request._start(endpoint.createStream(), options);
+      } else {
+        request._fallback(httpsRequest);
+      }
+    });
+  }
+
+  return request;
+};
+
+Agent.prototype.get = function get(options, callback) {
+  var request = this.request(options, callback);
+  request.end();
+  return request;
+};
+
+Agent.prototype.destroy = function(error) {
+  if (this._httpsAgent) {
+    this._httpsAgent.destroy();
+  }
+  for (var key in this.endpoints) {
+    this.endpoints[key].close(error);
+  }
+};
+
+function unbundleSocket(socket) {
+  socket.removeAllListeners('data');
+  socket.removeAllListeners('end');
+  socket.removeAllListeners('readable');
+  socket.removeAllListeners('close');
+  socket.removeAllListeners('error');
+  socket.unpipe();
+  delete socket.ondata;
+  delete socket.onend;
+}
+
+function hasAgentOptions(options) {
+  return options.pfx != null ||
+    options.key != null ||
+    options.passphrase != null ||
+    options.cert != null ||
+    options.ca != null ||
+    options.ciphers != null ||
+    options.rejectUnauthorized != null ||
+    options.secureProtocol != null;
+}
+
+Object.defineProperty(Agent.prototype, 'maxSockets', {
+  get: function getMaxSockets() {
+    return this._httpsAgent.maxSockets;
+  },
+  set: function setMaxSockets(value) {
+    this._httpsAgent.maxSockets = value;
+  }
+});
+
+exports.globalAgent = new Agent();
+
+// OutgoingRequest class
+// ---------------------
+
+function OutgoingRequest() {
+  OutgoingMessage.call(this);
+
+  this._log = undefined;
+
+  this.stream = undefined;
+}
+OutgoingRequest.prototype = Object.create(OutgoingMessage.prototype, { constructor: { value: OutgoingRequest } });
+
+OutgoingRequest.prototype._start = function _start(stream, options) {
+  this.stream = stream;
+  this.options = options;
+
+  this._log = stream._log.child({ component: 'http' });
+
+  for (var key in options.headers) {
+    this.setHeader(key, options.headers[key]);
+  }
+  var headers = this._headers;
+  delete headers.host;
+
+  if (options.auth) {
+    headers.authorization = 'Basic ' + Buffer.from(options.auth).toString('base64');
+  }
+
+  headers[':scheme'] = options.protocol.slice(0, -1);
+  headers[':method'] = options.method;
+  headers[':authority'] = options.host;
+  headers[':path'] = options.path;
+
+  this._log.info({ scheme: headers[':scheme'], method: headers[':method'],
+                   authority: headers[':authority'], path: headers[':path'],
+                   headers: (options.headers || {}) }, 'Sending request');
+  this.stream.headers(headers);
+  this.headersSent = true;
+
+  this.emit('socket', this.stream);
+  var response = new IncomingResponse(this.stream);
+  response.req = this;
+  response.once('ready', this.emit.bind(this, 'response', response));
+
+  this.stream.on('promise', this._onPromise.bind(this));
+};
+
+OutgoingRequest.prototype._fallback = function _fallback(request) {
+  request.on('response', this.emit.bind(this, 'response'));
+  this.stream = this.request = request;
+  this.emit('socket', this.socket);
+};
+
+OutgoingRequest.prototype.setPriority = function setPriority(priority) {
+  if (this.stream) {
+    this.stream.priority(priority);
+  } else {
+    this.once('socket', this.setPriority.bind(this, priority));
+  }
+};
+
+// Overriding `EventEmitter`'s `on(event, listener)` method to forward certain subscriptions to
+// `request`. See `Server.prototype.on` for explanation.
+OutgoingRequest.prototype.on = function on(event, listener) {
+  if (this.request && (event === 'upgrade')) {
+    this.request.on(event, listener && listener.bind(this));
+  } else {
+    OutgoingMessage.prototype.on.call(this, event, listener);
+  }
+};
+
+// Methods only in fallback mode
+OutgoingRequest.prototype.setNoDelay = function setNoDelay(noDelay) {
+  if (this.request) {
+    this.request.setNoDelay(noDelay);
+  } else if (!this.stream) {
+    this.on('socket', this.setNoDelay.bind(this, noDelay));
+  }
+};
+
+OutgoingRequest.prototype.setSocketKeepAlive = function setSocketKeepAlive(enable, initialDelay) {
+  if (this.request) {
+    this.request.setSocketKeepAlive(enable, initialDelay);
+  } else if (!this.stream) {
+    this.on('socket', this.setSocketKeepAlive.bind(this, enable, initialDelay));
+  }
+};
+
+OutgoingRequest.prototype.setTimeout = function setTimeout(timeout, callback) {
+  if (this.request) {
+    this.request.setTimeout(timeout, callback);
+  } else if (!this.stream) {
+    this.on('socket', this.setTimeout.bind(this, timeout, callback));
+  }
+};
+
+// Aborting the request
+OutgoingRequest.prototype.abort = function abort() {
+  if (this.request) {
+    this.request.abort();
+  } else if (this.stream) {
+    this.stream.reset('CANCEL');
+  } else {
+    this.on('socket', this.abort.bind(this));
+  }
+};
+
+// Receiving push promises
+OutgoingRequest.prototype._onPromise = function _onPromise(stream, headers) {
+  this._log.info({ push_stream: stream.id }, 'Receiving push promise');
+
+  var promise = new IncomingPromise(stream, headers);
+
+  if (this.listeners('push').length > 0) {
+    this.emit('push', promise);
+  } else {
+    promise.cancel();
+  }
+};
+
+// IncomingResponse class
+// ----------------------
+
+function IncomingResponse(stream) {
+  IncomingMessage.call(this, stream);
+}
+IncomingResponse.prototype = Object.create(IncomingMessage.prototype, { constructor: { value: IncomingResponse } });
+
+// [Response Header Fields](https://tools.ietf.org/html/rfc7540#section-8.1.2.4)
+// * `headers` argument: HTTP/2.0 request and response header fields carry information as a series
+//   of key-value pairs. This includes the target URI for the request, the status code for the
+//   response, as well as HTTP header fields.
+IncomingResponse.prototype._onHeaders = function _onHeaders(headers) {
+  // * A single ":status" header field is defined that carries the HTTP status code field. This
+  //   header field MUST be included in all responses.
+  // * A client MUST treat the absence of the ":status" header field, the presence of multiple
+  //   values, or an invalid value as a stream error of type PROTOCOL_ERROR.
+  //   Note: currently, we do not enforce it strictly: we accept any format, and parse it as int
+  // * HTTP/2.0 does not define a way to carry the reason phrase that is included in an HTTP/1.1
+  //   status line.
+  this.statusCode = parseInt(this._checkSpecialHeader(':status', headers[':status']));
+
+  // * Handling regular headers.
+  IncomingMessage.prototype._onHeaders.call(this, headers);
+
+  // * Signaling that the headers arrived.
+  this._log.info({ status: this.statusCode, headers: this.headers}, 'Incoming response');
+  this.emit('ready');
+};
+
+// IncomingPromise class
+// -------------------------
+
+function IncomingPromise(responseStream, promiseHeaders) {
+  var stream = new Readable();
+  stream._read = noop;
+  stream.push(null);
+  stream._log = responseStream._log;
+
+  IncomingRequest.call(this, stream);
+
+  this._onHeaders(promiseHeaders);
+
+  this._responseStream = responseStream;
+
+  var response = new IncomingResponse(this._responseStream);
+  response.once('ready', this.emit.bind(this, 'response', response));
+
+  this.stream.on('promise', this._onPromise.bind(this));
+}
+IncomingPromise.prototype = Object.create(IncomingRequest.prototype, { constructor: { value: IncomingPromise } });
+
+IncomingPromise.prototype.cancel = function cancel() {
+  this._responseStream.reset('CANCEL');
+};
+
+IncomingPromise.prototype.setPriority = function setPriority(priority) {
+  this._responseStream.priority(priority);
+};
+
+IncomingPromise.prototype._onPromise = OutgoingRequest.prototype._onPromise;
diff --git a/testing/xpcshell/node-http2/lib/index.js b/testing/xpcshell/node-http2/lib/index.js
new file mode 100644
index 0000000000..c67883defe
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/index.js
@@ -0,0 +1,52 @@
+// [node-http2][homepage] is an [HTTP/2][http2] implementation for [node.js][node].
+//
+// The core of the protocol is implemented in the protocol sub-directory. This directory provides
+// two important features on top of the protocol:
+//
+// * Implementation of different negotiation schemes that can be used to start a HTTP2 connection.
+//   These include TLS ALPN, Upgrade and Plain TCP.
+//
+// * Providing an API very similar to the standard node.js [HTTPS module API][node-https]
+//   (which is in turn very similar to the [HTTP module API][node-http]).
+//
+// [homepage]:            https://github.com/molnarg/node-http2
+// [http2]:               https://tools.ietf.org/html/rfc7540
+// [node]:                https://nodejs.org/
+// [node-https]:          https://nodejs.org/api/https.html
+// [node-http]:           https://nodejs.org/api/http.html
+
+module.exports   = require('./http');
+
+/*
+                  HTTP API
+
+               |            ^
+               |            |
+ +-------------|------------|------------------------------------------------------+
+ |             |            |        Server/Agent                                  |
+ |             v            |                                                      |
+ |        +----------+ +----------+                                                |
+ |        | Outgoing | | Incoming |                                                |
+ |        | req/res. | | req/res. |                                                |
+ |        +----------+ +----------+                                                |
+ |             |            ^                                                      |
+ |             |            |                                                      |
+ |   +---------|------------|-------------------------------------+   +-----       |
+ |   |         |            |   Endpoint                          |   |            |
+ |   |         |            |                                     |   |            |
+ |   |         v            |                                     |   |            |
+ |   |    +-----------------------+  +--------------------        |   |            |
+ |   |    |        Stream         |  |         Stream      ...    |   |            |
+ |   |    +-----------------------+  +--------------------        |   |            |
+ |   |                                                            |   |            |
+ |   +------------------------------------------------------------+   +-----       |
+ |                             |        |                                          |
+ |                             |        |                                          |
+ |                             v        |                                          |
+ |   +------------------------------------------------------------+   +-----       |
+ |   |                         TCP stream                         |   |      ...   |
+ |   +------------------------------------------------------------+   +-----       |
+ |                                                                                 |
+ +---------------------------------------------------------------------------------+
+
+*/
diff --git a/testing/xpcshell/node-http2/lib/protocol/compressor.js b/testing/xpcshell/node-http2/lib/protocol/compressor.js
new file mode 100644
index 0000000000..6f91f86ec9
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/protocol/compressor.js
@@ -0,0 +1,1428 @@
+// The implementation of the [HTTP/2 Header Compression][http2-compression] spec is separated from
+// the 'integration' part which handles HEADERS and PUSH_PROMISE frames. The compression itself is
+// implemented in the first part of the file, and consists of three classes: `HeaderTable`,
+// `HeaderSetDecompressor` and `HeaderSetCompressor`. The two latter classes are
+// [Transform Stream][node-transform] subclasses that operate in [object mode][node-objectmode].
+// These transform chunks of binary data into `[name, value]` pairs and vice versa, and store their
+// state in `HeaderTable` instances.
+//
+// The 'integration' part is also implemented by two [Transform Stream][node-transform] subclasses
+// that operate in [object mode][node-objectmode]: the `Compressor` and the `Decompressor`. These
+// provide a layer between the [framer](framer.html) and the
+// [connection handling component](connection.html).
+//
+// [node-transform]: https://nodejs.org/api/stream.html#stream_class_stream_transform
+// [node-objectmode]: https://nodejs.org/api/stream.html#stream_new_stream_readable_options
+// [http2-compression]: https://tools.ietf.org/html/rfc7541
+
+exports.HeaderTable = HeaderTable;
+exports.HuffmanTable = HuffmanTable;
+exports.HeaderSetCompressor = HeaderSetCompressor;
+exports.HeaderSetDecompressor = HeaderSetDecompressor;
+exports.Compressor = Compressor;
+exports.Decompressor = Decompressor;
+
+var TransformStream = require('stream').Transform;
+var assert = require('assert');
+var util = require('util');
+
+// Header compression
+// ==================
+
+// The HeaderTable class
+// ---------------------
+
+// The [Header Table] is a component used to associate headers to index values. It is basically an
+// ordered list of `[name, value]` pairs, so it's implemented as a subclass of `Array`.
+// In this implementation, the Header Table and the [Static Table] are handled as a single table.
+// [Header Table]: https://tools.ietf.org/html/rfc7541#section-2.3.2
+// [Static Table]: https://tools.ietf.org/html/rfc7541#section-2.3.1
+function HeaderTable(log, limit) {
+  var self = HeaderTable.staticTable.map(entryFromPair);
+  self._log = log;
+  self._limit = limit || DEFAULT_HEADER_TABLE_LIMIT;
+  self._staticLength = self.length;
+  self._size = 0;
+  self._enforceLimit = HeaderTable.prototype._enforceLimit;
+  self.add = HeaderTable.prototype.add;
+  self.setSizeLimit = HeaderTable.prototype.setSizeLimit;
+  return self;
+}
+
+function entryFromPair(pair) {
+  var entry = pair.slice();
+  entry._size = size(entry);
+  return entry;
+}
+
+// The encoder decides how to update the header table and as such can control how much memory is
+// used by the header table.  To limit the memory requirements on the decoder side, the header table
+// size is bounded.
+//
+// * The default header table size limit is 4096 bytes.
+// * The size of an entry is defined as follows: the size of an entry is the sum of its name's
+//   length in bytes, of its value's length in bytes and of 32 bytes.
+// * The size of a header table is the sum of the size of its entries.
+var DEFAULT_HEADER_TABLE_LIMIT = 4096;
+
+function size(entry) {
+  return (Buffer.from(entry[0] + entry[1], 'utf8')).length + 32;
+}
+
+// The `add(index, entry)` can be used to [manage the header table][tablemgmt]:
+// [tablemgmt]: https://tools.ietf.org/html/rfc7541#section-4
+//
+// * it pushes the new `entry` at the beggining of the table
+// * before doing such a modification, it has to be ensured that the header table size will stay
+//   lower than or equal to the header table size limit. To achieve this, entries are evicted from
+//   the end of the header table until the size of the header table is less than or equal to
+//   `(this._limit - entry.size)`, or until the table is empty.
+//
+//              <----------  Index Address Space ---------->
+//              <-- Static  Table -->  <-- Header  Table -->
+//              +---+-----------+---+  +---+-----------+---+
+//              | 0 |    ...    | k |  |k+1|    ...    | n |
+//              +---+-----------+---+  +---+-----------+---+
+//                                     ^                   |
+//                                     |                   V
+//                              Insertion Point       Drop Point
+
+HeaderTable.prototype._enforceLimit = function _enforceLimit(limit) {
+  var droppedEntries = [];
+  while ((this._size > 0) && (this._size > limit)) {
+    var dropped = this.pop();
+    this._size -= dropped._size;
+    droppedEntries.unshift(dropped);
+  }
+  return droppedEntries;
+};
+
+HeaderTable.prototype.add = function(entry) {
+  var limit = this._limit - entry._size;
+  var droppedEntries = this._enforceLimit(limit);
+
+  if (this._size <= limit) {
+    this.splice(this._staticLength, 0, entry);
+    this._size += entry._size;
+  }
+
+  return droppedEntries;
+};
+
+// The table size limit can be changed externally. In this case, the same eviction algorithm is used
+HeaderTable.prototype.setSizeLimit = function setSizeLimit(limit) {
+  this._limit = limit;
+  this._enforceLimit(this._limit);
+};
+
+// [The Static Table](https://tools.ietf.org/html/rfc7541#section-2.3.1)
+// ------------------
+
+// The table is generated with feeding the table from the spec to the following sed command:
+//
+//     sed -re "s/\s*\| [0-9]+\s*\| ([^ ]*)/  [ '\1'/g" -e "s/\|\s([^ ]*)/, '\1'/g" -e 's/ \|/],/g'
+
+HeaderTable.staticTable  = [
+  [ ':authority'                  , ''            ],
+  [ ':method'                     , 'GET'         ],
+  [ ':method'                     , 'POST'        ],
+  [ ':path'                       , '/'           ],
+  [ ':path'                       , '/index.html' ],
+  [ ':scheme'                     , 'http'        ],
+  [ ':scheme'                     , 'https'       ],
+  [ ':status'                     , '200'         ],
+  [ ':status'                     , '204'         ],
+  [ ':status'                     , '206'         ],
+  [ ':status'                     , '304'         ],
+  [ ':status'                     , '400'         ],
+  [ ':status'                     , '404'         ],
+  [ ':status'                     , '500'         ],
+  [ 'accept-charset'              , ''            ],
+  [ 'accept-encoding'             , 'gzip, deflate'],
+  [ 'accept-language'             , ''            ],
+  [ 'accept-ranges'               , ''            ],
+  [ 'accept'                      , ''            ],
+  [ 'access-control-allow-origin' , ''            ],
+  [ 'age'                         , ''            ],
+  [ 'allow'                       , ''            ],
+  [ 'authorization'               , ''            ],
+  [ 'cache-control'               , ''            ],
+  [ 'content-disposition'         , ''            ],
+  [ 'content-encoding'            , ''            ],
+  [ 'content-language'            , ''            ],
+  [ 'content-length'              , ''            ],
+  [ 'content-location'            , ''            ],
+  [ 'content-range'               , ''            ],
+  [ 'content-type'                , ''            ],
+  [ 'cookie'                      , ''            ],
+  [ 'date'                        , ''            ],
+  [ 'etag'                        , ''            ],
+  [ 'expect'                      , ''            ],
+  [ 'expires'                     , ''            ],
+  [ 'from'                        , ''            ],
+  [ 'host'                        , ''            ],
+  [ 'if-match'                    , ''            ],
+  [ 'if-modified-since'           , ''            ],
+  [ 'if-none-match'               , ''            ],
+  [ 'if-range'                    , ''            ],
+  [ 'if-unmodified-since'         , ''            ],
+  [ 'last-modified'               , ''            ],
+  [ 'link'                        , ''            ],
+  [ 'location'                    , ''            ],
+  [ 'max-forwards'                , ''            ],
+  [ 'proxy-authenticate'          , ''            ],
+  [ 'proxy-authorization'         , ''            ],
+  [ 'range'                       , ''            ],
+  [ 'referer'                     , ''            ],
+  [ 'refresh'                     , ''            ],
+  [ 'retry-after'                 , ''            ],
+  [ 'server'                      , ''            ],
+  [ 'set-cookie'                  , ''            ],
+  [ 'strict-transport-security'   , ''            ],
+  [ 'transfer-encoding'           , ''            ],
+  [ 'user-agent'                  , ''            ],
+  [ 'vary'                        , ''            ],
+  [ 'via'                         , ''            ],
+  [ 'www-authenticate'            , ''            ]
+];
+
+// The HeaderSetDecompressor class
+// -------------------------------
+
+// A `HeaderSetDecompressor` instance is a transform stream that can be used to *decompress a
+// single header set*. Its input is a stream of binary data chunks and its output is a stream of
+// `[name, value]` pairs.
+//
+// Currently, it is not a proper streaming decompressor implementation, since it buffer its input
+// until the end os the stream, and then processes the whole header block at once.
+
+util.inherits(HeaderSetDecompressor, TransformStream);
+function HeaderSetDecompressor(log, table) {
+  TransformStream.call(this, { objectMode: true });
+
+  this._log = log.child({ component: 'compressor' });
+  this._table = table;
+  this._chunks = [];
+}
+
+// `_transform` is the implementation of the [corresponding virtual function][_transform] of the
+// TransformStream class. It collects the data chunks for later processing.
+// [_transform]: https://nodejs.org/api/stream.html#stream_transform_transform_chunk_encoding_callback
+HeaderSetDecompressor.prototype._transform = function _transform(chunk, encoding, callback) {
+  this._chunks.push(chunk);
+  callback();
+};
+
+// `execute(rep)` executes the given [header representation][representation].
+// [representation]: https://tools.ietf.org/html/rfc7541#section-6
+
+// The *JavaScript object representation* of a header representation:
+//
+//     {
+//       name: String || Integer,  // string literal or index
+//       value: String || Integer, // string literal or index
+//       index: Boolean            // with or without indexing
+//     }
+//
+// *Important:* to ease the indexing of the header table, indexes start at 0 instead of 1.
+//
+// Examples:
+//
+//     Indexed:
+//     { name: 2  , value: 2  , index: false }
+//     Literal:
+//     { name: 2  , value: 'X', index: false } // without indexing
+//     { name: 2  , value: 'Y', index: true  } // with indexing
+//     { name: 'A', value: 'Z', index: true  } // with indexing, literal name
+HeaderSetDecompressor.prototype._execute = function _execute(rep) {
+  this._log.trace({ key: rep.name, value: rep.value, index: rep.index },
+                  'Executing header representation');
+
+  var entry, pair;
+
+  if (rep.contextUpdate) {
+    this._table.setSizeLimit(rep.newMaxSize);
+  }
+
+  // * An _indexed representation_ entails the following actions:
+  //   * The header field corresponding to the referenced entry is emitted
+  else if (typeof rep.value === 'number') {
+    var index = rep.value;
+    entry = this._table[index];
+
+    pair = entry.slice();
+    this.push(pair);
+  }
+
+  // * A _literal representation_ that is _not added_ to the header table entails the following
+  //   action:
+  //   * The header is emitted.
+  // * A _literal representation_ that is _added_ to the header table entails the following further
+  //   actions:
+  //   * The header is added to the header table.
+  //   * The header is emitted.
+  else {
+    if (typeof rep.name === 'number') {
+      pair = [this._table[rep.name][0], rep.value];
+    } else {
+      pair = [rep.name, rep.value];
+    }
+
+    if (rep.index) {
+      entry = entryFromPair(pair);
+      this._table.add(entry);
+    }
+
+    this.push(pair);
+  }
+};
+
+// `_flush` is the implementation of the [corresponding virtual function][_flush] of the
+// TransformStream class. The whole decompressing process is done in `_flush`. It gets called when
+// the input stream is over.
+// [_flush]: https://nodejs.org/api/stream.html#stream_transform_flush_callback
+HeaderSetDecompressor.prototype._flush = function _flush(callback) {
+  var buffer = concat(this._chunks);
+
+  // * processes the header representations
+  buffer.cursor = 0;
+  while (buffer.cursor < buffer.length) {
+    this._execute(HeaderSetDecompressor.header(buffer));
+  }
+
+  callback();
+};
+
+// The HeaderSetCompressor class
+// -----------------------------
+
+// A `HeaderSetCompressor` instance is a transform stream that can be used to *compress a single
+// header set*. Its input is a stream of `[name, value]` pairs and its output is a stream of
+// binary data chunks.
+//
+// It is a real streaming compressor, since it does not wait until the header set is complete.
+//
+// The compression algorithm is (intentionally) not specified by the spec. Therefore, the current
+// compression algorithm can probably be improved in the future.
+
+util.inherits(HeaderSetCompressor, TransformStream);
+function HeaderSetCompressor(log, table) {
+  TransformStream.call(this, { objectMode: true });
+
+  this._log = log.child({ component: 'compressor' });
+  this._table = table;
+  this.push = TransformStream.prototype.push.bind(this);
+}
+
+HeaderSetCompressor.prototype.send = function send(rep) {
+  this._log.trace({ key: rep.name, value: rep.value, index: rep.index },
+                  'Emitting header representation');
+
+  if (!rep.chunks) {
+    rep.chunks = HeaderSetCompressor.header(rep);
+  }
+  rep.chunks.forEach(this.push);
+};
+
+// `_transform` is the implementation of the [corresponding virtual function][_transform] of the
+// TransformStream class. It processes the input headers one by one:
+// [_transform]: https://nodejs.org/api/stream.html#stream_transform_transform_chunk_encoding_callback
+HeaderSetCompressor.prototype._transform = function _transform(pair, encoding, callback) {
+  var name = pair[0].toLowerCase();
+  var value = pair[1];
+  var entry, rep;
+
+  // * tries to find full (name, value) or name match in the header table
+  var nameMatch = -1, fullMatch = -1;
+  for (var droppedIndex = 0; droppedIndex < this._table.length; droppedIndex++) {
+    entry = this._table[droppedIndex];
+    if (entry[0] === name) {
+      if (entry[1] === value) {
+        fullMatch = droppedIndex;
+        break;
+      } else if (nameMatch === -1) {
+        nameMatch = droppedIndex;
+      }
+    }
+  }
+
+  var mustNeverIndex = ((name === 'cookie' && value.length < 20) ||
+                        (name === 'set-cookie' && value.length < 20) ||
+                        name === 'authorization');
+
+  if (fullMatch !== -1 && !mustNeverIndex) {
+    this.send({ name: fullMatch, value: fullMatch, index: false });
+  }
+
+  // * otherwise, it will be a literal representation (with a name index if there's a name match)
+  else {
+    entry = entryFromPair(pair);
+
+    var indexing = (entry._size < this._table._limit / 2) && !mustNeverIndex;
+
+    if (indexing) {
+      this._table.add(entry);
+    }
+
+    this.send({ name: (nameMatch !== -1) ? nameMatch : name, value: value, index: indexing, mustNeverIndex: mustNeverIndex, contextUpdate: false });
+  }
+
+  callback();
+};
+
+// `_flush` is the implementation of the [corresponding virtual function][_flush] of the
+// TransformStream class. It gets called when there's no more header to compress. The final step:
+// [_flush]: https://nodejs.org/api/stream.html#stream_transform_flush_callback
+HeaderSetCompressor.prototype._flush = function _flush(callback) {
+  callback();
+};
+
+// [Detailed Format](https://tools.ietf.org/html/rfc7541#section-5)
+// -----------------
+
+// ### Integer representation ###
+//
+// The algorithm to represent an integer I is as follows:
+//
+// 1. If I < 2^N - 1, encode I on N bits
+// 2. Else, encode 2^N - 1 on N bits and do the following steps:
+//    1. Set I to (I - (2^N - 1)) and Q to 1
+//    2. While Q > 0
+//       1. Compute Q and R, quotient and remainder of I divided by 2^7
+//       2. If Q is strictly greater than 0, write one 1 bit; otherwise, write one 0 bit
+//       3. Encode R on the next 7 bits
+//       4. I = Q
+
+HeaderSetCompressor.integer = function writeInteger(I, N) {
+  var limit = Math.pow(2,N) - 1;
+  if (I < limit) {
+    return [Buffer.from([I])];
+  }
+
+  var bytes = [];
+  if (N !== 0) {
+    bytes.push(limit);
+  }
+  I -= limit;
+
+  var Q = 1, R;
+  while (Q > 0) {
+    Q = Math.floor(I / 128);
+    R = I % 128;
+
+    if (Q > 0) {
+      R += 128;
+    }
+    bytes.push(R);
+
+    I = Q;
+  }
+
+  return [Buffer.from(bytes)];
+};
+
+// The inverse algorithm:
+//
+// 1. Set I to the number coded on the lower N bits of the first byte
+// 2. If I is smaller than 2^N - 1 then return I
+// 2. Else the number is encoded on more than one byte, so do the following steps:
+//    1. Set M to 0
+//    2. While returning with I
+//       1. Let B be the next byte (the first byte if N is 0)
+//       2. Read out the lower 7 bits of B and multiply it with 2^M
+//       3. Increase I with this number
+//       4. Increase M by 7
+//       5. Return I if the most significant bit of B is 0
+
+HeaderSetDecompressor.integer = function readInteger(buffer, N) {
+  var limit = Math.pow(2,N) - 1;
+
+  var I = buffer[buffer.cursor] & limit;
+  if (N !== 0) {
+    buffer.cursor += 1;
+  }
+
+  if (I === limit) {
+    var M = 0;
+    do {
+      I += (buffer[buffer.cursor] & 127) << M;
+      M += 7;
+      buffer.cursor += 1;
+    } while (buffer[buffer.cursor - 1] & 128);
+  }
+
+  return I;
+};
+
+// ### Huffman Encoding ###
+
+function HuffmanTable(table) {
+  function createTree(codes, position) {
+    if (codes.length === 1) {
+      return [table.indexOf(codes[0])];
+    }
+
+    else {
+      position = position || 0;
+      var zero = [];
+      var one = [];
+      for (var i = 0; i < codes.length; i++) {
+        var string = codes[i];
+        if (string[position] === '0') {
+          zero.push(string);
+        } else {
+          one.push(string);
+        }
+      }
+      return [createTree(zero, position + 1), createTree(one, position + 1)];
+    }
+  }
+
+  this.tree = createTree(table);
+
+  this.codes = table.map(function(bits) {
+    return parseInt(bits, 2);
+  });
+  this.lengths = table.map(function(bits) {
+    return bits.length;
+  });
+}
+
+HuffmanTable.prototype.encode = function encode(buffer) {
+  var result = [];
+  var space = 8;
+
+  function add(data) {
+    if (space === 8) {
+      result.push(data);
+    } else {
+      result[result.length - 1] |= data;
+    }
+  }
+
+  for (var i = 0; i < buffer.length; i++) {
+    var byte = buffer[i];
+    var code = this.codes[byte];
+    var length = this.lengths[byte];
+
+    while (length !== 0) {
+      if (space >= length) {
+        add(code << (space - length));
+        code = 0;
+        space -= length;
+        length = 0;
+      } else {
+        var shift = length - space;
+        var msb = code >> shift;
+        add(msb);
+        code -= msb << shift;
+        length -= space;
+        space = 0;
+      }
+
+      if (space === 0) {
+        space = 8;
+      }
+    }
+  }
+
+  if (space !== 8) {
+    add(this.codes[256] >> (this.lengths[256] - space));
+  }
+
+  return Buffer.from(result);
+};
+
+HuffmanTable.prototype.decode = function decode(buffer) {
+  var result = [];
+  var subtree = this.tree;
+
+  for (var i = 0; i < buffer.length; i++) {
+    var byte = buffer[i];
+
+    for (var j = 0; j < 8; j++) {
+      var bit = (byte & 128) ? 1 : 0;
+      byte = byte << 1;
+
+      subtree = subtree[bit];
+      if (subtree.length === 1) {
+        result.push(subtree[0]);
+        subtree = this.tree;
+      }
+    }
+  }
+
+  return Buffer.from(result);
+};
+
+// The initializer arrays for the Huffman tables are generated with feeding the tables from the
+// spec to this sed command:
+//
+//     sed -e "s/^.* [|]//g" -e "s/|//g" -e "s/ .*//g" -e "s/^/  '/g" -e "s/$/',/g"
+
+HuffmanTable.huffmanTable = new HuffmanTable([
+  '1111111111000',
+  '11111111111111111011000',
+  '1111111111111111111111100010',
+  '1111111111111111111111100011',
+  '1111111111111111111111100100',
+  '1111111111111111111111100101',
+  '1111111111111111111111100110',
+  '1111111111111111111111100111',
+  '1111111111111111111111101000',
+  '111111111111111111101010',
+  '111111111111111111111111111100',
+  '1111111111111111111111101001',
+  '1111111111111111111111101010',
+  '111111111111111111111111111101',
+  '1111111111111111111111101011',
+  '1111111111111111111111101100',
+  '1111111111111111111111101101',
+  '1111111111111111111111101110',
+  '1111111111111111111111101111',
+  '1111111111111111111111110000',
+  '1111111111111111111111110001',
+  '1111111111111111111111110010',
+  '111111111111111111111111111110',
+  '1111111111111111111111110011',
+  '1111111111111111111111110100',
+  '1111111111111111111111110101',
+  '1111111111111111111111110110',
+  '1111111111111111111111110111',
+  '1111111111111111111111111000',
+  '1111111111111111111111111001',
+  '1111111111111111111111111010',
+  '1111111111111111111111111011',
+  '010100',
+  '1111111000',
+  '1111111001',
+  '111111111010',
+  '1111111111001',
+  '010101',
+  '11111000',
+  '11111111010',
+  '1111111010',
+  '1111111011',
+  '11111001',
+  '11111111011',
+  '11111010',
+  '010110',
+  '010111',
+  '011000',
+  '00000',
+  '00001',
+  '00010',
+  '011001',
+  '011010',
+  '011011',
+  '011100',
+  '011101',
+  '011110',
+  '011111',
+  '1011100',
+  '11111011',
+  '111111111111100',
+  '100000',
+  '111111111011',
+  '1111111100',
+  '1111111111010',
+  '100001',
+  '1011101',
+  '1011110',
+  '1011111',
+  '1100000',
+  '1100001',
+  '1100010',
+  '1100011',
+  '1100100',
+  '1100101',
+  '1100110',
+  '1100111',
+  '1101000',
+  '1101001',
+  '1101010',
+  '1101011',
+  '1101100',
+  '1101101',
+  '1101110',
+  '1101111',
+  '1110000',
+  '1110001',
+  '1110010',
+  '11111100',
+  '1110011',
+  '11111101',
+  '1111111111011',
+  '1111111111111110000',
+  '1111111111100',
+  '11111111111100',
+  '100010',
+  '111111111111101',
+  '00011',
+  '100011',
+  '00100',
+  '100100',
+  '00101',
+  '100101',
+  '100110',
+  '100111',
+  '00110',
+  '1110100',
+  '1110101',
+  '101000',
+  '101001',
+  '101010',
+  '00111',
+  '101011',
+  '1110110',
+  '101100',
+  '01000',
+  '01001',
+  '101101',
+  '1110111',
+  '1111000',
+  '1111001',
+  '1111010',
+  '1111011',
+  '111111111111110',
+  '11111111100',
+  '11111111111101',
+  '1111111111101',
+  '1111111111111111111111111100',
+  '11111111111111100110',
+  '1111111111111111010010',
+  '11111111111111100111',
+  '11111111111111101000',
+  '1111111111111111010011',
+  '1111111111111111010100',
+  '1111111111111111010101',
+  '11111111111111111011001',
+  '1111111111111111010110',
+  '11111111111111111011010',
+  '11111111111111111011011',
+  '11111111111111111011100',
+  '11111111111111111011101',
+  '11111111111111111011110',
+  '111111111111111111101011',
+  '11111111111111111011111',
+  '111111111111111111101100',
+  '111111111111111111101101',
+  '1111111111111111010111',
+  '11111111111111111100000',
+  '111111111111111111101110',
+  '11111111111111111100001',
+  '11111111111111111100010',
+  '11111111111111111100011',
+  '11111111111111111100100',
+  '111111111111111011100',
+  '1111111111111111011000',
+  '11111111111111111100101',
+  '1111111111111111011001',
+  '11111111111111111100110',
+  '11111111111111111100111',
+  '111111111111111111101111',
+  '1111111111111111011010',
+  '111111111111111011101',
+  '11111111111111101001',
+  '1111111111111111011011',
+  '1111111111111111011100',
+  '11111111111111111101000',
+  '11111111111111111101001',
+  '111111111111111011110',
+  '11111111111111111101010',
+  '1111111111111111011101',
+  '1111111111111111011110',
+  '111111111111111111110000',
+  '111111111111111011111',
+  '1111111111111111011111',
+  '11111111111111111101011',
+  '11111111111111111101100',
+  '111111111111111100000',
+  '111111111111111100001',
+  '1111111111111111100000',
+  '111111111111111100010',
+  '11111111111111111101101',
+  '1111111111111111100001',
+  '11111111111111111101110',
+  '11111111111111111101111',
+  '11111111111111101010',
+  '1111111111111111100010',
+  '1111111111111111100011',
+  '1111111111111111100100',
+  '11111111111111111110000',
+  '1111111111111111100101',
+  '1111111111111111100110',
+  '11111111111111111110001',
+  '11111111111111111111100000',
+  '11111111111111111111100001',
+  '11111111111111101011',
+  '1111111111111110001',
+  '1111111111111111100111',
+  '11111111111111111110010',
+  '1111111111111111101000',
+  '1111111111111111111101100',
+  '11111111111111111111100010',
+  '11111111111111111111100011',
+  '11111111111111111111100100',
+  '111111111111111111111011110',
+  '111111111111111111111011111',
+  '11111111111111111111100101',
+  '111111111111111111110001',
+  '1111111111111111111101101',
+  '1111111111111110010',
+  '111111111111111100011',
+  '11111111111111111111100110',
+  '111111111111111111111100000',
+  '111111111111111111111100001',
+  '11111111111111111111100111',
+  '111111111111111111111100010',
+  '111111111111111111110010',
+  '111111111111111100100',
+  '111111111111111100101',
+  '11111111111111111111101000',
+  '11111111111111111111101001',
+  '1111111111111111111111111101',
+  '111111111111111111111100011',
+  '111111111111111111111100100',
+  '111111111111111111111100101',
+  '11111111111111101100',
+  '111111111111111111110011',
+  '11111111111111101101',
+  '111111111111111100110',
+  '1111111111111111101001',
+  '111111111111111100111',
+  '111111111111111101000',
+  '11111111111111111110011',
+  '1111111111111111101010',
+  '1111111111111111101011',
+  '1111111111111111111101110',
+  '1111111111111111111101111',
+  '111111111111111111110100',
+  '111111111111111111110101',
+  '11111111111111111111101010',
+  '11111111111111111110100',
+  '11111111111111111111101011',
+  '111111111111111111111100110',
+  '11111111111111111111101100',
+  '11111111111111111111101101',
+  '111111111111111111111100111',
+  '111111111111111111111101000',
+  '111111111111111111111101001',
+  '111111111111111111111101010',
+  '111111111111111111111101011',
+  '1111111111111111111111111110',
+  '111111111111111111111101100',
+  '111111111111111111111101101',
+  '111111111111111111111101110',
+  '111111111111111111111101111',
+  '111111111111111111111110000',
+  '11111111111111111111101110',
+  '111111111111111111111111111111'
+]);
+
+// ### String literal representation ###
+//
+// Literal **strings** can represent header names or header values. There's two variant of the
+// string encoding:
+//
+// String literal with Huffman encoding:
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 1 |  Value Length Prefix (7)  |
+//     +---+---+---+---+---+---+---+---+
+//     |   Value Length (0-N bytes)    |
+//     +---+---+---+---+---+---+---+---+
+//     ...
+//     +---+---+---+---+---+---+---+---+
+//     | Huffman Encoded Data  |Padding|
+//     +---+---+---+---+---+---+---+---+
+//
+// String literal without Huffman encoding:
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 0 |  Value Length Prefix (7)  |
+//     +---+---+---+---+---+---+---+---+
+//     |   Value Length (0-N bytes)    |
+//     +---+---+---+---+---+---+---+---+
+//     ...
+//     +---+---+---+---+---+---+---+---+
+//     |  Field Bytes Without Encoding |
+//     +---+---+---+---+---+---+---+---+
+
+HeaderSetCompressor.string = function writeString(str) {
+  str = Buffer.from(str, 'utf8');
+
+  var huffman = HuffmanTable.huffmanTable.encode(str);
+  if (huffman.length < str.length) {
+    var length = HeaderSetCompressor.integer(huffman.length, 7);
+    length[0][0] |= 128;
+    return length.concat(huffman);
+  }
+
+  else {
+    length = HeaderSetCompressor.integer(str.length, 7);
+    return length.concat(str);
+  }
+};
+
+HeaderSetDecompressor.string = function readString(buffer) {
+  var huffman = buffer[buffer.cursor] & 128;
+  var length = HeaderSetDecompressor.integer(buffer, 7);
+  var encoded = buffer.slice(buffer.cursor, buffer.cursor + length);
+  buffer.cursor += length;
+  return (huffman ? HuffmanTable.huffmanTable.decode(encoded) : encoded).toString('utf8');
+};
+
+// ### Header represenations ###
+
+// The JavaScript object representation is described near the
+// `HeaderSetDecompressor.prototype._execute()` method definition.
+//
+// **All binary header representations** start with a prefix signaling the representation type and
+// an index represented using prefix coded integers:
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 1 |        Index (7+)         |  Indexed Representation
+//     +---+---------------------------+
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 0 | 1 |      Index (6+)       |
+//     +---+---+---+-------------------+  Literal w/ Indexing
+//     |       Value Length (8+)       |
+//     +-------------------------------+  w/ Indexed Name
+//     | Value String (Length octets)  |
+//     +-------------------------------+
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 0 | 1 |           0           |
+//     +---+---+---+-------------------+
+//     |       Name Length (8+)        |
+//     +-------------------------------+  Literal w/ Indexing
+//     |  Name String (Length octets)  |
+//     +-------------------------------+  w/ New Name
+//     |       Value Length (8+)       |
+//     +-------------------------------+
+//     | Value String (Length octets)  |
+//     +-------------------------------+
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 0 | 0 | 0 | 0 |  Index (4+)   |
+//     +---+---+---+-------------------+  Literal w/o Incremental Indexing
+//     |       Value Length (8+)       |
+//     +-------------------------------+  w/ Indexed Name
+//     | Value String (Length octets)  |
+//     +-------------------------------+
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 0 | 0 | 0 | 0 |       0       |
+//     +---+---+---+-------------------+
+//     |       Name Length (8+)        |
+//     +-------------------------------+  Literal w/o Incremental Indexing
+//     |  Name String (Length octets)  |
+//     +-------------------------------+  w/ New Name
+//     |       Value Length (8+)       |
+//     +-------------------------------+
+//     | Value String (Length octets)  |
+//     +-------------------------------+
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 0 | 0 | 0 | 1 |  Index (4+)   |
+//     +---+---+---+-------------------+  Literal never indexed
+//     |       Value Length (8+)       |
+//     +-------------------------------+  w/ Indexed Name
+//     | Value String (Length octets)  |
+//     +-------------------------------+
+//
+//       0   1   2   3   4   5   6   7
+//     +---+---+---+---+---+---+---+---+
+//     | 0 | 0 | 0 | 1 |       0       |
+//     +---+---+---+-------------------+
+//     |       Name Length (8+)        |
+//     +-------------------------------+  Literal never indexed
+//     |  Name String (Length octets)  |
+//     +-------------------------------+  w/ New Name
+//     |       Value Length (8+)       |
+//     +-------------------------------+
+//     | Value String (Length octets)  |
+//     +-------------------------------+
+//
+// The **Indexed Representation** consists of the 1-bit prefix and the Index that is represented as
+// a 7-bit prefix coded integer and nothing else.
+//
+// After the first bits, **all literal representations** specify the header name, either as a
+// pointer to the Header Table (Index) or a string literal. When the string literal representation
+// is used, the Index is set to 0 and the string literal starts at the second byte.
+//
+// For **all literal representations**, the specification of the header value comes next. It is
+// always represented as a string.
+
+var representations = {
+  indexed             : { prefix: 7, pattern: 0x80 },
+  literalIncremental  : { prefix: 6, pattern: 0x40 },
+  contextUpdate       : { prefix: 0, pattern: 0x20 },
+  literalNeverIndexed : { prefix: 4, pattern: 0x10 },
+  literal             : { prefix: 4, pattern: 0x00 }
+};
+
+HeaderSetCompressor.header = function writeHeader(header) {
+  var representation, buffers = [];
+
+  if (header.contextUpdate) {
+    representation = representations.contextUpdate;
+  } else if (typeof header.value === 'number') {
+    representation = representations.indexed;
+  } else if (header.index) {
+    representation = representations.literalIncremental;
+  } else if (header.mustNeverIndex) {
+    representation = representations.literalNeverIndexed;
+  } else {
+    representation = representations.literal;
+  }
+
+  if (representation === representations.contextUpdate) {
+    buffers.push(HeaderSetCompressor.integer(header.newMaxSize, 5));
+  }
+
+  else if (representation === representations.indexed) {
+    buffers.push(HeaderSetCompressor.integer(header.value + 1, representation.prefix));
+  }
+
+  else {
+    if (typeof header.name === 'number') {
+      buffers.push(HeaderSetCompressor.integer(header.name + 1, representation.prefix));
+    } else {
+      buffers.push(HeaderSetCompressor.integer(0, representation.prefix));
+      buffers.push(HeaderSetCompressor.string(header.name));
+    }
+    buffers.push(HeaderSetCompressor.string(header.value));
+  }
+
+  buffers[0][0][0] |= representation.pattern;
+
+  return Array.prototype.concat.apply([], buffers); // array of arrays of buffers -> array of buffers
+};
+
+HeaderSetDecompressor.header = function readHeader(buffer) {
+  var representation, header = {};
+
+  var firstByte = buffer[buffer.cursor];
+  if (firstByte & 0x80) {
+    representation = representations.indexed;
+  } else if (firstByte & 0x40) {
+    representation = representations.literalIncremental;
+  } else if (firstByte & 0x20) {
+    representation = representations.contextUpdate;
+  } else if (firstByte & 0x10) {
+    representation = representations.literalNeverIndexed;
+  } else {
+    representation = representations.literal;
+  }
+
+  header.value = header.name = -1;
+  header.index = false;
+  header.contextUpdate = false;
+  header.newMaxSize = 0;
+  header.mustNeverIndex = false;
+
+  if (representation === representations.contextUpdate) {
+    header.contextUpdate = true;
+    header.newMaxSize = HeaderSetDecompressor.integer(buffer, 5);
+  }
+
+  else if (representation === representations.indexed) {
+    header.value = header.name = HeaderSetDecompressor.integer(buffer, representation.prefix) - 1;
+  }
+
+  else {
+    header.name = HeaderSetDecompressor.integer(buffer, representation.prefix) - 1;
+    if (header.name === -1) {
+      header.name = HeaderSetDecompressor.string(buffer);
+    }
+    header.value = HeaderSetDecompressor.string(buffer);
+    header.index = (representation === representations.literalIncremental);
+    header.mustNeverIndex = (representation === representations.literalNeverIndexed);
+  }
+
+  return header;
+};
+
+// Integration with HTTP/2
+// =======================
+
+// This section describes the interaction between the compressor/decompressor and the rest of the
+// HTTP/2 implementation. The `Compressor` and the `Decompressor` makes up a layer between the
+// [framer](framer.html) and the [connection handling component](connection.html). They let most
+// frames pass through, except HEADERS and PUSH_PROMISE frames. They convert the frames between
+// these two representations:
+//
+//     {                                   {
+//      type: 'HEADERS',                    type: 'HEADERS',
+//      flags: {},                          flags: {},
+//      stream: 1,               <===>      stream: 1,
+//      headers: {                          data: Buffer
+//       N1: 'V1',                         }
+//       N2: ['V1', 'V2', ...],
+//       // ...
+//      }
+//     }
+//
+// There are possibly several binary frame that belong to a single non-binary frame.
+
+var MAX_HTTP_PAYLOAD_SIZE = 16384;
+
+// The Compressor class
+// --------------------
+
+// The Compressor transform stream is basically stateless.
+util.inherits(Compressor, TransformStream);
+function Compressor(log, type) {
+  TransformStream.call(this, { objectMode: true });
+
+  this._log = log.child({ component: 'compressor' });
+
+  assert((type === 'REQUEST') || (type === 'RESPONSE'));
+  this._table = new HeaderTable(this._log);
+
+  this.tableSizeChangePending = false;
+  this.lowestTableSizePending = 0;
+  this.tableSizeSetting = DEFAULT_HEADER_TABLE_LIMIT;
+}
+
+// Changing the header table size
+Compressor.prototype.setTableSizeLimit = function setTableSizeLimit(size) {
+  this._table.setSizeLimit(size);
+  if (!this.tableSizeChangePending || size < this.lowestTableSizePending) {
+    this.lowestTableSizePending = size;
+  }
+  this.tableSizeSetting = size;
+  this.tableSizeChangePending = true;
+};
+
+// `compress` takes a header set, and compresses it using a new `HeaderSetCompressor` stream
+// instance. This means that from now on, the advantages of streaming header encoding are lost,
+// but the API becomes simpler.
+Compressor.prototype.compress = function compress(headers) {
+  var compressor = new HeaderSetCompressor(this._log, this._table);
+
+  if (this.tableSizeChangePending) {
+    if (this.lowestTableSizePending < this.tableSizeSetting) {
+      compressor.send({contextUpdate: true, newMaxSize: this.lowestTableSizePending,
+                       name: "", value: "", index: 0});
+    }
+    compressor.send({contextUpdate: true, newMaxSize: this.tableSizeSetting,
+                     name: "", value: "", index: 0});
+    this.tableSizeChangePending = false;
+  }
+  var colonHeaders = [];
+  var nonColonHeaders = [];
+
+  // To ensure we send colon headers first
+  for (var name in headers) {
+    if (name.trim()[0] === ':') {
+      colonHeaders.push(name);
+    } else {
+      nonColonHeaders.push(name);
+    }
+  }
+
+  function compressHeader(name) {
+    var value = headers[name];
+    name = String(name).toLowerCase();
+
+    // * To allow for better compression efficiency, the Cookie header field MAY be split into
+    //   separate header fields, each with one or more cookie-pairs.
+    if (name == 'cookie') {
+      if (!(value instanceof Array)) {
+        value = [value];
+      }
+      value = Array.prototype.concat.apply([], value.map(function(cookie) {
+        return String(cookie).split(';').map(trim);
+      }));
+    }
+
+    if (value instanceof Array) {
+      for (var i = 0; i < value.length; i++) {
+        compressor.write([name, String(value[i])]);
+      }
+    } else {
+      compressor.write([name, String(value)]);
+    }
+  }
+
+  colonHeaders.forEach(compressHeader);
+  nonColonHeaders.forEach(compressHeader);
+
+  compressor.end();
+
+  var chunk, chunks = [];
+  while (chunk = compressor.read()) {
+    chunks.push(chunk);
+  }
+
+  function insertSoftIllegalHpack(originalCompressed) {
+    var illegalLiteral = Buffer.from([
+      0x00, // Literal, no index
+      0x08, // Name: not huffman encoded, 8 bytes long
+      0x3a,
+      0x69,
+      0x6c,
+      0x6c,
+      0x65,
+      0x67,
+      0x61,
+      0x6c, // :illegal
+      0x10, // Value: not huffman encoded, 16 bytes long
+      // REALLY NOT LEGAL
+      0x52,
+      0x45,
+      0x41,
+      0x4c,
+      0x4c,
+      0x59,
+      0x20,
+      0x4e,
+      0x4f,
+      0x54,
+      0x20,
+      0x4c,
+      0x45,
+      0x47,
+      0x41,
+      0x4c,
+    ]);
+    var newBufferLength = originalCompressed.length + illegalLiteral.length;
+    var concatenated = Buffer.alloc(newBufferLength);
+    originalCompressed.copy(concatenated, 0);
+    illegalLiteral.copy(concatenated, originalCompressed.length);
+    return concatenated;
+  }
+
+  function insertHardIllegalHpack(originalCompressed) {
+    // Now we have to add an invalid header
+    var illegalIndexed = HeaderSetCompressor.integer(5000, 7);
+    // The above returns an array of buffers, but there's only one buffer, so
+    // get rid of the array.
+    illegalIndexed = illegalIndexed[0];
+    // Set the first bit to 1 to signal this is an indexed representation
+    illegalIndexed[0] |= 0x80;
+    var newBufferLength = originalCompressed.length + illegalIndexed.length;
+    var concatenated = Buffer.alloc(newBufferLength);
+    originalCompressed.copy(concatenated, 0);
+    illegalIndexed.copy(concatenated, originalCompressed.length);
+    return concatenated;
+  }
+
+  if ("x-softillegalhpack" in headers) {
+    return insertSoftIllegalHpack(concat(chunks));
+  }
+
+  if ("x-hardillegalhpack" in headers) {
+    return insertHardIllegalHpack(concat(chunks));
+  }
+
+  return concat(chunks);
+};
+
+// When a `frame` arrives
+Compressor.prototype._transform = function _transform(frame, encoding, done) {
+  // * and it is a HEADERS or PUSH_PROMISE frame
+  //   * it generates a header block using the compress method
+  //   * cuts the header block into `chunks` that are not larger than `MAX_HTTP_PAYLOAD_SIZE`
+  //   * for each chunk, it pushes out a chunk frame that is identical to the original, except
+  //     the `data` property which holds the given chunk, the type of the frame which is always
+  //     CONTINUATION except for the first frame, and the END_HEADERS/END_PUSH_STREAM flag that
+  //     marks the last frame and the END_STREAM flag which is always false before the end
+  if (frame.type === 'HEADERS' || frame.type === 'PUSH_PROMISE') {
+    var buffer = this.compress(frame.headers);
+
+    // This will result in CONTINUATIONs from a PUSH_PROMISE being 4 bytes shorter than they could
+    // be, but that's not the end of the world, and it prevents us from going over MAX_HTTP_PAYLOAD_SIZE
+    // on the initial PUSH_PROMISE frame.
+    var adjustment = frame.type === 'PUSH_PROMISE' ? 4 : 0;
+    var chunks = cut(buffer, MAX_HTTP_PAYLOAD_SIZE - adjustment);
+
+    for (var i = 0; i < chunks.length; i++) {
+      var chunkFrame;
+      var first = (i === 0);
+      var last = (i === chunks.length - 1);
+
+      if (first) {
+        chunkFrame = util._extend({}, frame);
+        chunkFrame.flags = util._extend({}, frame.flags);
+        chunkFrame.flags['END_' + frame.type] = last;
+      } else {
+        chunkFrame = {
+          type: 'CONTINUATION',
+          flags: { END_HEADERS: last },
+          stream: frame.stream
+        };
+      }
+      chunkFrame.data = chunks[i];
+
+      this.push(chunkFrame);
+    }
+  }
+
+  // * otherwise, the frame is forwarded without taking any action
+  else {
+    this.push(frame);
+  }
+
+  done();
+};
+
+// The Decompressor class
+// ----------------------
+
+// The Decompressor is a stateful transform stream, since it has to collect multiple frames first,
+// and the decoding comes after unifying the payload of those frames.
+//
+// If there's a frame in progress, `this._inProgress` is `true`. The frames are collected in
+// `this._frames`, and the type of the frame and the stream identifier is stored in `this._type`
+// and `this._stream` respectively.
+util.inherits(Decompressor, TransformStream);
+function Decompressor(log, type) {
+  TransformStream.call(this, { objectMode: true });
+
+  this._log = log.child({ component: 'compressor' });
+
+  assert((type === 'REQUEST') || (type === 'RESPONSE'));
+  this._table = new HeaderTable(this._log);
+
+  this._inProgress = false;
+  this._base = undefined;
+}
+
+// Changing the header table size
+Decompressor.prototype.setTableSizeLimit = function setTableSizeLimit(size) {
+  this._table.setSizeLimit(size);
+};
+
+// `decompress` takes a full header block, and decompresses it using a new `HeaderSetDecompressor`
+// stream instance. This means that from now on, the advantages of streaming header decoding are
+// lost, but the API becomes simpler.
+Decompressor.prototype.decompress = function decompress(block) {
+  var decompressor = new HeaderSetDecompressor(this._log, this._table);
+  decompressor.end(block);
+
+  var seenNonColonHeader = false;
+  var headers = {};
+  var pair;
+  while (pair = decompressor.read()) {
+    var name = pair[0];
+    var value = pair[1];
+    var isColonHeader = (name.trim()[0] === ':');
+    if (seenNonColonHeader && isColonHeader) {
+        this.emit('error', 'PROTOCOL_ERROR');
+        return headers;
+    }
+    seenNonColonHeader = !isColonHeader;
+    if (name in headers) {
+      if (headers[name] instanceof Array) {
+        headers[name].push(value);
+      } else {
+        headers[name] = [headers[name], value];
+      }
+    } else {
+      headers[name] = value;
+    }
+  }
+
+  // * If there are multiple Cookie header fields after decompression, these MUST be concatenated
+  //   into a single octet string using the two octet delimiter of 0x3B, 0x20 (the ASCII
+  //   string "; ").
+  if (('cookie' in headers) && (headers['cookie'] instanceof Array)) {
+    headers['cookie'] = headers['cookie'].join('; ');
+  }
+
+  return headers;
+};
+
+// When a `frame` arrives
+Decompressor.prototype._transform = function _transform(frame, encoding, done) {
+  // * and the collection process is already `_inProgress`, the frame is simply stored, except if
+  //   it's an illegal frame
+  if (this._inProgress) {
+    if ((frame.type !== 'CONTINUATION') || (frame.stream !== this._base.stream)) {
+      this._log.error('A series of HEADER frames were not continuous');
+      this.emit('error', 'PROTOCOL_ERROR');
+      return;
+    }
+    this._frames.push(frame);
+  }
+
+  // * and the collection process is not `_inProgress`, but the new frame's type is HEADERS or
+  //   PUSH_PROMISE, a new collection process begins
+  else if ((frame.type === 'HEADERS') || (frame.type === 'PUSH_PROMISE')) {
+    this._inProgress = true;
+    this._base = util._extend({}, frame);
+    this._frames = [frame];
+  }
+
+  // * otherwise, the frame is forwarded without taking any action
+  else {
+    this.push(frame);
+  }
+
+  // * When the frame signals that it's the last in the series, the header block chunks are
+  //   concatenated, the headers are decompressed, and a new frame gets pushed out with the
+  //   decompressed headers.
+  if (this._inProgress && (frame.flags.END_HEADERS || frame.flags.END_PUSH_PROMISE)) {
+    var buffer = concat(this._frames.map(function(frame) {
+      return frame.data;
+    }));
+    try {
+      var headers = this.decompress(buffer);
+    } catch(error) {
+      this._log.error({ err: error }, 'Header decompression error');
+      this.emit('error', 'COMPRESSION_ERROR');
+      return;
+    }
+    this.push(util._extend(this._base, { headers: headers }));
+    this._inProgress = false;
+  }
+
+  done();
+};
+
+// Helper functions
+// ================
+
+// Concatenate an array of buffers into a new buffer
+function concat(buffers) {
+  var size = 0;
+  for (var i = 0; i < buffers.length; i++) {
+    size += buffers[i].length;
+  }
+
+  var concatenated = Buffer.alloc(size);
+  for (var cursor = 0, j = 0; j < buffers.length; cursor += buffers[j].length, j++) {
+    buffers[j].copy(concatenated, cursor);
+  }
+
+  return concatenated;
+}
+
+// Cut `buffer` into chunks not larger than `size`
+function cut(buffer, size) {
+  var chunks = [];
+  var cursor = 0;
+  do {
+    var chunkSize = Math.min(size, buffer.length - cursor);
+    chunks.push(buffer.slice(cursor, cursor + chunkSize));
+    cursor += chunkSize;
+  } while(cursor < buffer.length);
+  return chunks;
+}
+
+function trim(string) {
+  return string.trim();
+}
diff --git a/testing/xpcshell/node-http2/lib/protocol/connection.js b/testing/xpcshell/node-http2/lib/protocol/connection.js
new file mode 100644
index 0000000000..8c203675fa
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/protocol/connection.js
@@ -0,0 +1,630 @@
+var assert = require('assert');
+
+// The Connection class
+// ====================
+
+// The Connection class manages HTTP/2 connections. Each instance corresponds to one transport
+// stream (TCP stream). It operates by sending and receiving frames and is implemented as a
+// [Flow](flow.html) subclass.
+
+var Flow = require('./flow').Flow;
+
+exports.Connection = Connection;
+
+// Public API
+// ----------
+
+// * **new Connection(log, firstStreamId, settings)**: create a new Connection
+//
+// * **Event: 'error' (type)**: signals a connection level error made by the other end
+//
+// * **Event: 'peerError' (type)**: signals the receipt of a GOAWAY frame that contains an error
+//   code other than NO_ERROR
+//
+// * **Event: 'stream' (stream)**: signals that there's an incoming stream
+//
+// * **createStream(): stream**: initiate a new stream
+//
+// * **set(settings, callback)**: change the value of one or more settings according to the
+//   key-value pairs of `settings`. The callback is called after the peer acknowledged the changes.
+//
+// * **ping([callback])**: send a ping and call callback when the answer arrives
+//
+// * **close([error])**: close the stream with an error code
+
+// Constructor
+// -----------
+
+// The main aspects of managing the connection are:
+function Connection(log, firstStreamId, settings) {
+  // * initializing the base class
+  Flow.call(this, 0);
+
+  // * logging: every method uses the common logger object
+  this._log = log.child({ component: 'connection' });
+
+  // * stream management
+  this._initializeStreamManagement(firstStreamId);
+
+  // * lifecycle management
+  this._initializeLifecycleManagement();
+
+  // * flow control
+  this._initializeFlowControl();
+
+  // * settings management
+  this._initializeSettingsManagement(settings);
+
+  // * multiplexing
+  this._initializeMultiplexing();
+}
+Connection.prototype = Object.create(Flow.prototype, { constructor: { value: Connection } });
+
+// Overview
+// --------
+
+//              |    ^             |    ^
+//              v    |             v    |
+//         +--------------+   +--------------+
+//     +---|   stream1    |---|   stream2    |----      ....      ---+
+//     |   | +----------+ |   | +----------+ |                       |
+//     |   | | stream1. | |   | | stream2. | |                       |
+//     |   +-| upstream |-+   +-| upstream |-+                       |
+//     |     +----------+       +----------+                         |
+//     |       |     ^             |     ^                           |
+//     |       v     |             v     |                           |
+//     |       +-----+-------------+-----+--------      ....         |
+//     |       ^     |             |     |                           |
+//     |       |     v             |     |                           |
+//     |   +--------------+        |     |                           |
+//     |   |   stream0    |        |     |                           |
+//     |   |  connection  |        |     |                           |
+//     |   |  management  |     multiplexing                         |
+//     |   +--------------+     flow control                         |
+//     |                           |     ^                           |
+//     |                   _read() |     | _write()                  |
+//     |                           v     |                           |
+//     |                +------------+ +-----------+                 |
+//     |                |output queue| |input queue|                 |
+//     +----------------+------------+-+-----------+-----------------+
+//                                 |     ^
+//                          read() |     | write()
+//                                 v     |
+
+// Stream management
+// -----------------
+
+var Stream  = require('./stream').Stream;
+
+// Initialization:
+Connection.prototype._initializeStreamManagement = function _initializeStreamManagement(firstStreamId) {
+  // * streams are stored in two data structures:
+  //   * `_streamIds` is an id -> stream map of the streams that are allowed to receive frames.
+  //   * `_streamPriorities` is a priority -> [stream] map of stream that allowed to send frames.
+  this._streamIds = [];
+  this._streamPriorities = [];
+
+  // * The next outbound stream ID and the last inbound stream id
+  this._nextStreamId = firstStreamId;
+  this._lastIncomingStream = 0;
+
+  // * Calling `_writeControlFrame` when there's an incoming stream with 0 as stream ID
+  this._streamIds[0] = { upstream: { write: this._writeControlFrame.bind(this) } };
+
+  // * By default, the number of concurrent outbound streams is not limited. The `_streamLimit` can
+  //   be set by the SETTINGS_MAX_CONCURRENT_STREAMS setting.
+  this._streamSlotsFree = Infinity;
+  this._streamLimit = Infinity;
+  this.on('RECEIVING_SETTINGS_MAX_CONCURRENT_STREAMS', this._updateStreamLimit);
+};
+
+// `_writeControlFrame` is called when there's an incoming frame in the `_control` stream. It
+// broadcasts the message by creating an event on it.
+Connection.prototype._writeControlFrame = function _writeControlFrame(frame) {
+  if ((frame.type === 'SETTINGS') || (frame.type === 'PING') ||
+      (frame.type === 'GOAWAY') || (frame.type === 'WINDOW_UPDATE') ||
+      (frame.type === 'ALTSVC') || (frame.type == 'ORIGIN')) {
+    this._log.debug({ frame: frame }, 'Receiving connection level frame');
+    this.emit(frame.type, frame);
+  } else {
+    this._log.error({ frame: frame }, 'Invalid connection level frame');
+    this.emit('error', 'PROTOCOL_ERROR');
+  }
+};
+
+// Methods to manage the stream slot pool:
+Connection.prototype._updateStreamLimit = function _updateStreamLimit(newStreamLimit) {
+  var wakeup = (this._streamSlotsFree === 0) && (newStreamLimit > this._streamLimit);
+  this._streamSlotsFree += newStreamLimit - this._streamLimit;
+  this._streamLimit = newStreamLimit;
+  if (wakeup) {
+    this.emit('wakeup');
+  }
+};
+
+Connection.prototype._changeStreamCount = function _changeStreamCount(change) {
+  if (change) {
+    this._log.trace({ free: this._streamSlotsFree, change: change },
+                    'Changing active stream count.');
+    var wakeup = (this._streamSlotsFree === 0) && (change < 0);
+    this._streamSlotsFree -= change;
+    if (wakeup) {
+      this.emit('wakeup');
+    }
+  }
+};
+
+// Creating a new *inbound or outbound* stream with the given `id` (which is undefined in case of
+// an outbound stream) consists of three steps:
+//
+// 1. var stream = new Stream(this._log, this);
+// 2. this._allocateId(stream, id);
+// 2. this._allocatePriority(stream);
+
+// Allocating an ID to a stream
+Connection.prototype._allocateId = function _allocateId(stream, id) {
+  // * initiated stream without definite ID
+  if (id === undefined) {
+    id = this._nextStreamId;
+    this._nextStreamId += 2;
+  }
+
+  // * incoming stream with a legitim ID (larger than any previous and different parity than ours)
+  else if ((id > this._lastIncomingStream) && ((id - this._nextStreamId) % 2 !== 0)) {
+    this._lastIncomingStream = id;
+  }
+
+  // * incoming stream with invalid ID
+  else {
+    this._log.error({ stream_id: id, lastIncomingStream: this._lastIncomingStream },
+                    'Invalid incoming stream ID.');
+    this.emit('error', 'PROTOCOL_ERROR');
+    return undefined;
+  }
+
+  assert(!(id in this._streamIds));
+
+  // * adding to `this._streamIds`
+  this._log.trace({ s: stream, stream_id: id }, 'Allocating ID for stream.');
+  this._streamIds[id] = stream;
+  stream.id = id;
+  this.emit('new_stream', stream, id);
+
+  // * forwarding connection errors from streams
+  stream.on('connectionError', this.emit.bind(this, 'error'));
+
+  return id;
+};
+
+// Allocating a priority to a stream, and managing priority changes
+Connection.prototype._allocatePriority = function _allocatePriority(stream) {
+  this._log.trace({ s: stream }, 'Allocating priority for stream.');
+  this._insert(stream, stream._priority);
+  stream.on('priority', this._reprioritize.bind(this, stream));
+  stream.upstream.on('readable', this.emit.bind(this, 'wakeup'));
+  this.emit('wakeup');
+};
+
+Connection.prototype._insert = function _insert(stream, priority) {
+  if (priority in this._streamPriorities) {
+    this._streamPriorities[priority].push(stream);
+  } else {
+    this._streamPriorities[priority] = [stream];
+  }
+};
+
+Connection.prototype._reprioritize = function _reprioritize(stream, priority) {
+  var bucket = this._streamPriorities[stream._priority];
+  var index = bucket.indexOf(stream);
+  assert(index !== -1);
+  bucket.splice(index, 1);
+  if (bucket.length === 0) {
+    delete this._streamPriorities[stream._priority];
+  }
+
+  this._insert(stream, priority);
+};
+
+// Creating an *inbound* stream with the given ID. It is called when there's an incoming frame to
+// a previously nonexistent stream.
+Connection.prototype._createIncomingStream = function _createIncomingStream(id) {
+  this._log.debug({ stream_id: id }, 'New incoming stream.');
+
+  var stream = new Stream(this._log, this);
+  this._allocateId(stream, id);
+  this._allocatePriority(stream);
+  this.emit('stream', stream, id);
+
+  return stream;
+};
+
+// Creating an *outbound* stream
+Connection.prototype.createStream = function createStream() {
+  this._log.trace('Creating new outbound stream.');
+
+  // * Receiving is enabled immediately, and an ID gets assigned to the stream
+  var stream = new Stream(this._log, this);
+  this._allocatePriority(stream);
+
+  return stream;
+};
+
+// Multiplexing
+// ------------
+
+Connection.prototype._initializeMultiplexing = function _initializeMultiplexing() {
+  this.on('window_update', this.emit.bind(this, 'wakeup'));
+  this._sendScheduled = false;
+  this._firstFrameReceived = false;
+};
+
+// The `_send` method is a virtual method of the [Flow class](flow.html) that has to be implemented
+// by child classes. It reads frames from streams and pushes them to the output buffer.
+Connection.prototype._send = function _send(immediate) {
+  // * Do not do anything if the connection is already closed
+  if (this._closed) {
+    return;
+  }
+
+  // * Collapsing multiple calls in a turn into a single deferred call
+  if (immediate) {
+    this._sendScheduled = false;
+  } else {
+    if (!this._sendScheduled) {
+      this._sendScheduled = true;
+      setImmediate(this._send.bind(this, true));
+    }
+    return;
+  }
+
+  this._log.trace('Starting forwarding frames from streams.');
+
+  // * Looping through priority `bucket`s in priority order.
+priority_loop:
+  for (var priority in this._streamPriorities) {
+    var bucket = this._streamPriorities[priority];
+    var nextBucket = [];
+
+    // * Forwarding frames from buckets with round-robin scheduling.
+    //   1. pulling out frame
+    //   2. if there's no frame, skip this stream
+    //   3. if forwarding this frame would make `streamCount` greater than `streamLimit`, skip
+    //      this stream
+    //   4. adding stream to the bucket of the next round
+    //   5. assigning an ID to the frame (allocating an ID to the stream if there isn't already)
+    //   6. if forwarding a PUSH_PROMISE, allocate ID to the promised stream
+    //   7. forwarding the frame, changing `streamCount` as appropriate
+    //   8. stepping to the next stream if there's still more frame needed in the output buffer
+    //   9. switching to the bucket of the next round
+    while (bucket.length > 0) {
+      for (var index = 0; index < bucket.length; index++) {
+        var stream = bucket[index];
+        var frame = stream.upstream.read((this._window > 0) ? this._window : -1);
+
+        if (!frame) {
+          continue;
+        } else if (frame.count_change > this._streamSlotsFree) {
+          stream.upstream.unshift(frame);
+          continue;
+        }
+
+        nextBucket.push(stream);
+
+        if (frame.stream === undefined) {
+          frame.stream = stream.id || this._allocateId(stream);
+        }
+
+        if (frame.type === 'PUSH_PROMISE') {
+          this._allocatePriority(frame.promised_stream);
+          frame.promised_stream = this._allocateId(frame.promised_stream);
+        }
+
+        this._log.trace({ s: stream, frame: frame }, 'Forwarding outgoing frame');
+        var moreNeeded = this.push(frame);
+        this._changeStreamCount(frame.count_change);
+
+        assert(moreNeeded !== null); // The frame shouldn't be unforwarded
+        if (moreNeeded === false) {
+          break priority_loop;
+        }
+      }
+
+      bucket = nextBucket;
+      nextBucket = [];
+    }
+  }
+
+  // * if we couldn't forward any frame, then sleep until window update, or some other wakeup event
+  if (moreNeeded === undefined) {
+    this.once('wakeup', this._send.bind(this));
+  }
+
+  this._log.trace({ moreNeeded: moreNeeded }, 'Stopping forwarding frames from streams.');
+};
+
+// The `_receive` method is another virtual method of the [Flow class](flow.html) that has to be
+// implemented by child classes. It forwards the given frame to the appropriate stream:
+Connection.prototype._receive = function _receive(frame, done) {
+  this._log.trace({ frame: frame }, 'Forwarding incoming frame');
+
+  // * first frame needs to be checked by the `_onFirstFrameReceived` method
+  if (!this._firstFrameReceived) {
+    this._firstFrameReceived = true;
+    this._onFirstFrameReceived(frame);
+  }
+
+  // Do some sanity checking here before we create a stream
+  if ((frame.type == 'SETTINGS' ||
+       frame.type == 'PING' ||
+       frame.type == 'GOAWAY') &&
+      frame.stream != 0) {
+    // Got connection-level frame on a stream - EEP!
+    this.close('PROTOCOL_ERROR');
+    return;
+  } else if ((frame.type == 'DATA' ||
+              frame.type == 'HEADERS' ||
+              frame.type == 'PRIORITY' ||
+              frame.type == 'RST_STREAM' ||
+              frame.type == 'PUSH_PROMISE' ||
+              frame.type == 'CONTINUATION') &&
+             frame.stream == 0) {
+    // Got stream-level frame on connection - EEP!
+    this.close('PROTOCOL_ERROR');
+    return;
+  }
+  // WINDOW_UPDATE can be on either stream or connection
+
+  // * gets the appropriate stream from the stream registry
+  var stream = this._streamIds[frame.stream];
+
+  // * or creates one if it's not in `this.streams`
+  if (!stream) {
+    stream = this._createIncomingStream(frame.stream);
+  }
+
+  // * in case of PUSH_PROMISE, replaces the promised stream id with a new incoming stream
+  if (frame.type === 'PUSH_PROMISE') {
+    frame.promised_stream = this._createIncomingStream(frame.promised_stream);
+  }
+
+  frame.count_change = this._changeStreamCount.bind(this);
+
+  // * and writes it to the `stream`'s `upstream`
+  stream.upstream.write(frame);
+
+  done();
+};
+
+// Settings management
+// -------------------
+
+var defaultSettings = {
+};
+
+// Settings management initialization:
+Connection.prototype._initializeSettingsManagement = function _initializeSettingsManagement(settings) {
+  // * Setting up the callback queue for setting acknowledgements
+  this._settingsAckCallbacks = [];
+
+  // * Sending the initial settings.
+  this._log.debug({ settings: settings },
+                  'Sending the first SETTINGS frame as part of the connection header.');
+  this.set(settings || defaultSettings);
+
+  // * Forwarding SETTINGS frames to the `_receiveSettings` method
+  this.on('SETTINGS', this._receiveSettings);
+  this.on('RECEIVING_SETTINGS_MAX_FRAME_SIZE', this._sanityCheckMaxFrameSize);
+};
+
+// * Checking that the first frame the other endpoint sends is SETTINGS
+Connection.prototype._onFirstFrameReceived = function _onFirstFrameReceived(frame) {
+  if ((frame.stream === 0) && (frame.type === 'SETTINGS')) {
+    this._log.debug('Receiving the first SETTINGS frame as part of the connection header.');
+  } else {
+    this._log.fatal({ frame: frame }, 'Invalid connection header: first frame is not SETTINGS.');
+    this.emit('error', 'PROTOCOL_ERROR');
+  }
+};
+
+// Handling of incoming SETTINGS frames.
+Connection.prototype._receiveSettings = function _receiveSettings(frame) {
+  // * If it's an ACK, call the appropriate callback
+  if (frame.flags.ACK) {
+    var callback = this._settingsAckCallbacks.shift();
+    if (callback) {
+      callback();
+    }
+  }
+
+  // * If it's a setting change request, then send an ACK and change the appropriate settings
+  else {
+    if (!this._closed) {
+      this.push({
+        type: 'SETTINGS',
+        flags: { ACK: true },
+        stream: 0,
+        settings: {}
+      });
+    }
+    for (var name in frame.settings) {
+      this.emit('RECEIVING_' + name, frame.settings[name]);
+    }
+  }
+};
+
+Connection.prototype._sanityCheckMaxFrameSize = function _sanityCheckMaxFrameSize(value) {
+  if ((value < 0x4000) || (value >= 0x01000000)) {
+    this._log.fatal('Received invalid value for max frame size: ' + value);
+    this.emit('error');
+  }
+};
+
+// Changing one or more settings value and sending out a SETTINGS frame
+Connection.prototype.set = function set(settings, callback) {
+  // * Calling the callback and emitting event when the change is acknowledges
+  var self = this;
+  this._settingsAckCallbacks.push(function() {
+    for (var name in settings) {
+      self.emit('ACKNOWLEDGED_' + name, settings[name]);
+    }
+    if (callback) {
+      callback();
+    }
+  });
+
+  // * Sending out the SETTINGS frame
+  this.push({
+    type: 'SETTINGS',
+    flags: { ACK: false },
+    stream: 0,
+    settings: settings
+  });
+  for (var name in settings) {
+    this.emit('SENDING_' + name, settings[name]);
+  }
+};
+
+// Lifecycle management
+// --------------------
+
+// The main responsibilities of lifecycle management code:
+//
+// * keeping the connection alive by
+//   * sending PINGs when the connection is idle
+//   * answering PINGs
+// * ending the connection
+
+Connection.prototype._initializeLifecycleManagement = function _initializeLifecycleManagement() {
+  this._pings = {};
+  this.on('PING', this._receivePing);
+  this.on('GOAWAY', this._receiveGoaway);
+  this._closed = false;
+};
+
+// Generating a string of length 16 with random hexadecimal digits
+Connection.prototype._generatePingId = function _generatePingId() {
+  do {
+    var id = '';
+    for (var i = 0; i < 16; i++) {
+      id += Math.floor(Math.random()*16).toString(16);
+    }
+  } while(id in this._pings);
+  return id;
+};
+
+// Sending a ping and calling `callback` when the answer arrives
+Connection.prototype.ping = function ping(callback) {
+  var id = this._generatePingId();
+  var data = Buffer.from(id, 'hex');
+  this._pings[id] = callback;
+
+  this._log.debug({ data: data }, 'Sending PING.');
+  this.push({
+    type: 'PING',
+    flags: {
+      ACK: false
+    },
+    stream: 0,
+    data: data
+  });
+};
+
+// Answering pings
+Connection.prototype._receivePing = function _receivePing(frame) {
+  if (frame.flags.ACK) {
+    var id = frame.data.toString('hex');
+    if (id in this._pings) {
+      this._log.debug({ data: frame.data }, 'Receiving answer for a PING.');
+      var callback = this._pings[id];
+      if (callback) {
+        callback();
+      }
+      delete this._pings[id];
+    } else {
+      this._log.warn({ data: frame.data }, 'Unsolicited PING answer.');
+    }
+
+  } else {
+    this._log.debug({ data: frame.data }, 'Answering PING.');
+    this.push({
+      type: 'PING',
+      flags: {
+        ACK: true
+      },
+      stream: 0,
+      data: frame.data
+    });
+  }
+};
+
+Connection.prototype.originFrame = function originFrame(originList) {
+  this._log.debug(originList, 'emitting origin frame');
+
+  this.push({
+    type: 'ORIGIN',
+    flags: {},
+    stream: 0,
+    originList : originList,
+  });
+};
+
+// Terminating the connection
+Connection.prototype.close = function close(error) {
+  if (this._closed) {
+    this._log.warn('Trying to close an already closed connection');
+    return;
+  }
+
+  this._log.debug({ error: error }, 'Closing the connection');
+  this.push({
+    type: 'GOAWAY',
+    flags: {},
+    stream: 0,
+    last_stream: this._lastIncomingStream,
+    error: error || 'NO_ERROR'
+  });
+  this.push(null);
+  this._closed = true;
+};
+
+Connection.prototype._receiveGoaway = function _receiveGoaway(frame) {
+  this._log.debug({ error: frame.error }, 'Other end closed the connection');
+  this.push(null);
+  this._closed = true;
+  if (frame.error !== 'NO_ERROR') {
+    this.emit('peerError', frame.error);
+  }
+};
+
+// Flow control
+// ------------
+
+Connection.prototype._initializeFlowControl = function _initializeFlowControl() {
+  // Handling of initial window size of individual streams.
+  this._initialStreamWindowSize = INITIAL_STREAM_WINDOW_SIZE;
+  this.on('new_stream', function(stream) {
+    stream.upstream.setInitialWindow(this._initialStreamWindowSize);
+  });
+  this.on('RECEIVING_SETTINGS_INITIAL_WINDOW_SIZE', this._setInitialStreamWindowSize);
+  this._streamIds[0].upstream.setInitialWindow = function noop() {};
+};
+
+// The initial connection flow control window is 65535 bytes.
+var INITIAL_STREAM_WINDOW_SIZE = 65535;
+
+// A SETTINGS frame can alter the initial flow control window size for all current streams. When the
+// value of SETTINGS_INITIAL_WINDOW_SIZE changes, a receiver MUST adjust the window size of all
+// stream by calling the `setInitialStreamWindowSize` method. The window size has to be modified by
+// the difference between the new value and the old value.
+Connection.prototype._setInitialStreamWindowSize = function _setInitialStreamWindowSize(size) {
+  if ((this._initialStreamWindowSize === Infinity) && (size !== Infinity)) {
+    this._log.error('Trying to manipulate initial flow control window size after flow control was turned off.');
+    this.emit('error', 'FLOW_CONTROL_ERROR');
+  } else {
+    this._log.debug({ size: size }, 'Changing stream initial window size.');
+    this._initialStreamWindowSize = size;
+    this._streamIds.forEach(function(stream) {
+      stream.upstream.setInitialWindow(size);
+    });
+  }
+};
diff --git a/testing/xpcshell/node-http2/lib/protocol/endpoint.js b/testing/xpcshell/node-http2/lib/protocol/endpoint.js
new file mode 100644
index 0000000000..127f4c4c5c
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/protocol/endpoint.js
@@ -0,0 +1,262 @@
+var assert = require('assert');
+
+var Serializer   = require('./framer').Serializer;
+var Deserializer = require('./framer').Deserializer;
+var Compressor   = require('./compressor').Compressor;
+var Decompressor = require('./compressor').Decompressor;
+var Connection   = require('./connection').Connection;
+var Duplex       = require('stream').Duplex;
+var Transform    = require('stream').Transform;
+
+exports.Endpoint = Endpoint;
+
+// The Endpoint class
+// ==================
+
+// Public API
+// ----------
+
+// - **new Endpoint(log, role, settings, filters)**: create a new Endpoint.
+//
+//   - `log`: bunyan logger of the parent
+//   - `role`: 'CLIENT' or 'SERVER'
+//   - `settings`: initial HTTP/2 settings
+//   - `filters`: a map of functions that filter the traffic between components (for debugging or
+//     intentional failure injection).
+//
+//     Filter functions get three arguments:
+//     1. `frame`: the current frame
+//     2. `forward(frame)`: function that can be used to forward a frame to the next component
+//     3. `done()`: callback to signal the end of the filter process
+//
+//     Valid filter names and their position in the stack:
+//     - `beforeSerialization`: after compression, before serialization
+//     - `beforeCompression`: after multiplexing, before compression
+//     - `afterDeserialization`: after deserialization, before decompression
+//     - `afterDecompression`: after decompression, before multiplexing
+//
+// * **Event: 'stream' (Stream)**: 'stream' event forwarded from the underlying Connection
+//
+// * **Event: 'error' (type)**: signals an error
+//
+// * **createStream(): Stream**: initiate a new stream (forwarded to the underlying Connection)
+//
+// * **close([error])**: close the connection with an error code
+
+// Constructor
+// -----------
+
+// The process of initialization:
+function Endpoint(log, role, settings, filters) {
+  Duplex.call(this);
+
+  // * Initializing logging infrastructure
+  this._log = log.child({ component: 'endpoint', e: this });
+
+  // * First part of the handshake process: sending and receiving the client connection header
+  //   prelude.
+  assert((role === 'CLIENT') || role === 'SERVER');
+  if (role === 'CLIENT') {
+    this._writePrelude();
+  } else {
+    this._readPrelude();
+  }
+
+  // * Initialization of component. This includes the second part of the handshake process:
+  //   sending the first SETTINGS frame. This is done by the connection class right after
+  //   initialization.
+  this._initializeDataFlow(role, settings, filters || {});
+
+  // * Initialization of management code.
+  this._initializeManagement();
+
+  // * Initializing error handling.
+  this._initializeErrorHandling();
+}
+Endpoint.prototype = Object.create(Duplex.prototype, { constructor: { value: Endpoint } });
+
+// Handshake
+// ---------
+
+var CLIENT_PRELUDE = Buffer.from('PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n');
+
+// Writing the client header is simple and synchronous.
+Endpoint.prototype._writePrelude = function _writePrelude() {
+  this._log.debug('Sending the client connection header prelude.');
+  this.push(CLIENT_PRELUDE);
+};
+
+// The asynchronous process of reading the client header:
+Endpoint.prototype._readPrelude = function _readPrelude() {
+  // * progress in the header is tracker using a `cursor`
+  var cursor = 0;
+
+  // * `_write` is temporarily replaced by the comparator function
+  this._write = function _temporalWrite(chunk, encoding, done) {
+    // * which compares the stored header with the current `chunk` byte by byte and emits the
+    //   'error' event if there's a byte that doesn't match
+    var offset = cursor;
+    while(cursor < CLIENT_PRELUDE.length && (cursor - offset) < chunk.length) {
+      if (CLIENT_PRELUDE[cursor] !== chunk[cursor - offset]) {
+        this._log.fatal({ cursor: cursor, offset: offset, chunk: chunk },
+                        'Client connection header prelude does not match.');
+        this._error('handshake', 'PROTOCOL_ERROR');
+        return;
+      }
+      cursor += 1;
+    }
+
+    // * if the whole header is over, and there were no error then restore the original `_write`
+    //   and call it with the remaining part of the current chunk
+    if (cursor === CLIENT_PRELUDE.length) {
+      this._log.debug('Successfully received the client connection header prelude.');
+      delete this._write;
+      chunk = chunk.slice(cursor - offset);
+      this._write(chunk, encoding, done);
+    }
+  };
+};
+
+// Data flow
+// ---------
+
+//     +---------------------------------------------+
+//     |                                             |
+//     |   +-------------------------------------+   |
+//     |   | +---------+ +---------+ +---------+ |   |
+//     |   | | stream1 | | stream2 | |   ...   | |   |
+//     |   | +---------+ +---------+ +---------+ |   |
+//     |   |             connection              |   |
+//     |   +-------------------------------------+   |
+//     |             |                 ^             |
+//     |        pipe |                 | pipe        |
+//     |             v                 |             |
+//     |   +------------------+------------------+   |
+//     |   |    compressor    |   decompressor   |   |
+//     |   +------------------+------------------+   |
+//     |             |                 ^             |
+//     |        pipe |                 | pipe        |
+//     |             v                 |             |
+//     |   +------------------+------------------+   |
+//     |   |    serializer    |   deserializer   |   |
+//     |   +------------------+------------------+   |
+//     |             |                 ^             |
+//     |     _read() |                 | _write()    |
+//     |             v                 |             |
+//     |      +------------+     +-----------+       |
+//     |      |output queue|     |input queue|       |
+//     +------+------------+-----+-----------+-------+
+//                   |                 ^
+//            read() |                 | write()
+//                   v                 |
+
+function createTransformStream(filter) {
+  var transform = new Transform({ objectMode: true });
+  var push = transform.push.bind(transform);
+  transform._transform = function(frame, encoding, done) {
+    filter(frame, push, done);
+  };
+  return transform;
+}
+
+function pipeAndFilter(stream1, stream2, filter) {
+  if (filter) {
+    stream1.pipe(createTransformStream(filter)).pipe(stream2);
+  } else {
+    stream1.pipe(stream2);
+  }
+}
+
+Endpoint.prototype._initializeDataFlow = function _initializeDataFlow(role, settings, filters) {
+  var firstStreamId, compressorRole, decompressorRole;
+  if (role === 'CLIENT') {
+    firstStreamId = 1;
+    compressorRole = 'REQUEST';
+    decompressorRole = 'RESPONSE';
+  } else {
+    firstStreamId = 2;
+    compressorRole = 'RESPONSE';
+    decompressorRole = 'REQUEST';
+  }
+
+  this._serializer   = new Serializer(this._log);
+  this._deserializer = new Deserializer(this._log);
+  this._compressor   = new Compressor(this._log, compressorRole);
+  this._decompressor = new Decompressor(this._log, decompressorRole);
+  this._connection   = new Connection(this._log, firstStreamId, settings);
+
+  pipeAndFilter(this._connection, this._compressor, filters.beforeCompression);
+  pipeAndFilter(this._compressor, this._serializer, filters.beforeSerialization);
+  pipeAndFilter(this._deserializer, this._decompressor, filters.afterDeserialization);
+  pipeAndFilter(this._decompressor, this._connection, filters.afterDecompression);
+
+  this._connection.on('ACKNOWLEDGED_SETTINGS_HEADER_TABLE_SIZE',
+                      this._decompressor.setTableSizeLimit.bind(this._decompressor));
+  this._connection.on('RECEIVING_SETTINGS_HEADER_TABLE_SIZE',
+                      this._compressor.setTableSizeLimit.bind(this._compressor));
+};
+
+var noread = {};
+Endpoint.prototype._read = function _read() {
+  this._readableState.sync = true;
+  var moreNeeded = noread, chunk;
+  while (moreNeeded && (chunk = this._serializer.read())) {
+    moreNeeded = this.push(chunk);
+  }
+  if (moreNeeded === noread) {
+    this._serializer.once('readable', this._read.bind(this));
+  }
+  this._readableState.sync = false;
+};
+
+Endpoint.prototype._write = function _write(chunk, encoding, done) {
+  this._deserializer.write(chunk, encoding, done);
+};
+
+// Management
+// --------------
+
+Endpoint.prototype._initializeManagement = function _initializeManagement() {
+  this._connection.on('stream', this.emit.bind(this, 'stream'));
+};
+
+Endpoint.prototype.createStream = function createStream() {
+  return this._connection.createStream();
+};
+
+// Error handling
+// --------------
+
+Endpoint.prototype._initializeErrorHandling = function _initializeErrorHandling() {
+  this._serializer.on('error', this._error.bind(this, 'serializer'));
+  this._deserializer.on('error', this._error.bind(this, 'deserializer'));
+  this._compressor.on('error', this._error.bind(this, 'compressor'));
+  this._decompressor.on('error', this._error.bind(this, 'decompressor'));
+  this._connection.on('error', this._error.bind(this, 'connection'));
+
+  this._connection.on('peerError', this.emit.bind(this, 'peerError'));
+};
+
+Endpoint.prototype._error = function _error(component, error) {
+  this._log.fatal({ source: component, message: error }, 'Fatal error, closing connection');
+  this.close(error);
+  setImmediate(this.emit.bind(this, 'error', error));
+};
+
+Endpoint.prototype.close = function close(error) {
+  this._connection.close(error);
+};
+
+// Bunyan serializers
+// ------------------
+
+exports.serializers = {};
+
+var nextId = 0;
+exports.serializers.e = function(endpoint) {
+  if (!('id' in endpoint)) {
+    endpoint.id = nextId;
+    nextId += 1;
+  }
+  return endpoint.id;
+};
diff --git a/testing/xpcshell/node-http2/lib/protocol/flow.js b/testing/xpcshell/node-http2/lib/protocol/flow.js
new file mode 100644
index 0000000000..6bec857551
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/protocol/flow.js
@@ -0,0 +1,345 @@
+var assert = require('assert');
+
+// The Flow class
+// ==============
+
+// Flow is a [Duplex stream][1] subclass which implements HTTP/2 flow control. It is designed to be
+// subclassed by [Connection](connection.html) and the `upstream` component of [Stream](stream.html).
+// [1]: https://nodejs.org/api/stream.html#stream_class_stream_duplex
+
+var Duplex  = require('stream').Duplex;
+
+exports.Flow = Flow;
+
+// Public API
+// ----------
+
+// * **Event: 'error' (type)**: signals an error
+//
+// * **setInitialWindow(size)**: the initial flow control window size can be changed *any time*
+//   ([as described in the standard][1]) using this method
+//
+// [1]: https://tools.ietf.org/html/rfc7540#section-6.9.2
+
+// API for child classes
+// ---------------------
+
+// * **new Flow([flowControlId])**: creating a new flow that will listen for WINDOW_UPDATES frames
+//   with the given `flowControlId` (or every update frame if not given)
+//
+// * **_send()**: called when more frames should be pushed. The child class is expected to override
+//   this (instead of the `_read` method of the Duplex class).
+//
+// * **_receive(frame, readyCallback)**: called when there's an incoming frame. The child class is
+//   expected to override this (instead of the `_write` method of the Duplex class).
+//
+// * **push(frame): bool**: schedules `frame` for sending.
+//
+//   Returns `true` if it needs more frames in the output queue, `false` if the output queue is
+//   full, and `null` if did not push the frame into the output queue (instead, it pushed it into
+//   the flow control queue).
+//
+// * **read(limit): frame**: like the regular `read`, but the 'flow control size' (0 for non-DATA
+//   frames, length of the payload for DATA frames) of the returned frame will be under `limit`.
+//   Small exception: pass -1 as `limit` if the max. flow control size is 0. `read(0)` means the
+//   same thing as [in the original API](https://nodejs.org/api/stream.html#stream_stream_read_0).
+//
+// * **getLastQueuedFrame(): frame**: returns the last frame in output buffers
+//
+// * **_log**: the Flow class uses the `_log` object of the parent
+
+// Constructor
+// -----------
+
+// When a HTTP/2.0 connection is first established, new streams are created with an initial flow
+// control window size of 65535 bytes.
+var INITIAL_WINDOW_SIZE = 65535;
+
+// `flowControlId` is needed if only specific WINDOW_UPDATEs should be watched.
+function Flow(flowControlId) {
+  Duplex.call(this, { objectMode: true });
+
+  this._window = this._initialWindow = INITIAL_WINDOW_SIZE;
+  this._flowControlId = flowControlId;
+  this._queue = [];
+  this._ended = false;
+  this._received = 0;
+}
+Flow.prototype = Object.create(Duplex.prototype, { constructor: { value: Flow } });
+
+// Incoming frames
+// ---------------
+
+// `_receive` is called when there's an incoming frame.
+Flow.prototype._receive = function _receive(frame, callback) {
+  throw new Error('The _receive(frame, callback) method has to be overridden by the child class!');
+};
+
+// `_receive` is called by `_write` which in turn is [called by Duplex][1] when someone `write()`s
+// to the flow. It emits the 'receiving' event and notifies the window size tracking code if the
+// incoming frame is a WINDOW_UPDATE.
+// [1]: https://nodejs.org/api/stream.html#stream_writable_write_chunk_encoding_callback_1
+Flow.prototype._write = function _write(frame, encoding, callback) {
+  var sentToUs = (this._flowControlId === undefined) || (frame.stream === this._flowControlId);
+
+  if (sentToUs && (frame.flags.END_STREAM || (frame.type === 'RST_STREAM'))) {
+    this._ended = true;
+  }
+
+  if ((frame.type === 'DATA') && (frame.data.length > 0)) {
+    this._receive(frame, function() {
+      this._received += frame.data.length;
+      if (!this._restoreWindowTimer) {
+        this._restoreWindowTimer = setImmediate(this._restoreWindow.bind(this));
+      }
+      callback();
+    }.bind(this));
+  }
+
+  else {
+    this._receive(frame, callback);
+  }
+
+  if (sentToUs && (frame.type === 'WINDOW_UPDATE')) {
+    this._updateWindow(frame);
+  }
+};
+
+// `_restoreWindow` basically acknowledges the DATA frames received since it's last call. It sends
+// a WINDOW_UPDATE that restores the flow control window of the remote end.
+// TODO: push this directly into the output queue. No need to wait for DATA frames in the queue.
+Flow.prototype._restoreWindow = function _restoreWindow() {
+  delete this._restoreWindowTimer;
+  if (!this._ended && (this._received > 0)) {
+    this.push({
+      type: 'WINDOW_UPDATE',
+      flags: {},
+      stream: this._flowControlId,
+      window_size: this._received
+    });
+    this._received = 0;
+  }
+};
+
+// Outgoing frames - sending procedure
+// -----------------------------------
+
+//                                         flow
+//                +-------------------------------------------------+
+//                |                                                 |
+//                +--------+           +---------+                  |
+//        read()  | output |  _read()  | flow    |  _send()         |
+//     <----------|        |<----------| control |<-------------    |
+//                | buffer |           | buffer  |                  |
+//                +--------+           +---------+                  |
+//                | input  |                                        |
+//     ---------->|        |----------------------------------->    |
+//       write()  | buffer |  _write()              _receive()      |
+//                +--------+                                        |
+//                |                                                 |
+//                +-------------------------------------------------+
+
+// `_send` is called when more frames should be pushed to the output buffer.
+Flow.prototype._send = function _send() {
+  throw new Error('The _send() method has to be overridden by the child class!');
+};
+
+// `_send` is called by `_read` which is in turn [called by Duplex][1] when it wants to have more
+// items in the output queue.
+// [1]: https://nodejs.org/api/stream.html#stream_writable_write_chunk_encoding_callback_1
+Flow.prototype._read = function _read() {
+  // * if the flow control queue is empty, then let the user push more frames
+  if (this._queue.length === 0) {
+    this._send();
+  }
+
+  // * if there are items in the flow control queue, then let's put them into the output queue (to
+  //   the extent it is possible with respect to the window size and output queue feedback)
+  else if (this._window > 0) {
+    this._readableState.sync = true; // to avoid reentrant calls
+    do {
+      var moreNeeded = this._push(this._queue[0]);
+      if (moreNeeded !== null) {
+        this._queue.shift();
+      }
+    } while (moreNeeded && (this._queue.length > 0));
+    this._readableState.sync = false;
+
+    assert((!moreNeeded) ||                              // * output queue is full
+           (this._queue.length === 0) ||                         // * flow control queue is empty
+           (!this._window && (this._queue[0].type === 'DATA'))); // * waiting for window update
+  }
+
+  // * otherwise, come back when the flow control window is positive
+  else {
+    this.once('window_update', this._read);
+  }
+};
+
+var MAX_PAYLOAD_SIZE = 4096; // Must not be greater than MAX_HTTP_PAYLOAD_SIZE which is 16383
+
+// `read(limit)` is like the `read` of the Readable class, but it guarantess that the 'flow control
+// size' (0 for non-DATA frames, length of the payload for DATA frames) of the returned frame will
+// be under `limit`.
+Flow.prototype.read = function read(limit) {
+  if (limit === 0) {
+    return Duplex.prototype.read.call(this, 0);
+  } else if (limit === -1) {
+    limit = 0;
+  } else if ((limit === undefined) || (limit > MAX_PAYLOAD_SIZE)) {
+    limit = MAX_PAYLOAD_SIZE;
+  }
+
+  // * Looking at the first frame in the queue without pulling it out if possible.
+  var frame = this._readableState.buffer[0];
+  if (!frame && !this._readableState.ended) {
+    this._read();
+    frame = this._readableState.buffer[0];
+  }
+
+  if (frame && (frame.type === 'DATA')) {
+    // * If the frame is DATA, then there's two special cases:
+    //   * if the limit is 0, we shouldn't return anything
+    //   * if the size of the frame is larger than limit, then the frame should be split
+    if (limit === 0) {
+      return Duplex.prototype.read.call(this, 0);
+    }
+
+    else if (frame.data.length > limit) {
+      this._log.trace({ frame: frame, size: frame.data.length, forwardable: limit },
+        'Splitting out forwardable part of a DATA frame.');
+      this.unshift({
+        type: 'DATA',
+        flags: {},
+        stream: frame.stream,
+        data: frame.data.slice(0, limit)
+      });
+      frame.data = frame.data.slice(limit);
+    }
+  }
+
+  return Duplex.prototype.read.call(this);
+};
+
+// `_parentPush` pushes the given `frame` into the output queue
+Flow.prototype._parentPush = function _parentPush(frame) {
+  this._log.trace({ frame: frame }, 'Pushing frame into the output queue');
+
+  if (frame && (frame.type === 'DATA') && (this._window !== Infinity)) {
+    this._log.trace({ window: this._window, by: frame.data.length },
+                    'Decreasing flow control window size.');
+    this._window -= frame.data.length;
+    assert(this._window >= 0);
+  }
+
+  return Duplex.prototype.push.call(this, frame);
+};
+
+// `_push(frame)` pushes `frame` into the output queue and decreases the flow control window size.
+// It is capable of splitting DATA frames into smaller parts, if the window size is not enough to
+// push the whole frame. The return value is similar to `push` except that it returns `null` if it
+// did not push the whole frame to the output queue (but maybe it did push part of the frame).
+Flow.prototype._push = function _push(frame) {
+  var data = frame && (frame.type === 'DATA') && frame.data;
+  var maxFrameLength = (this._window < 16384) ? this._window : 16384;
+
+  if (!data || (data.length <= maxFrameLength)) {
+    return this._parentPush(frame);
+  }
+
+  else if (this._window <= 0) {
+    return null;
+  }
+
+  else {
+    this._log.trace({ frame: frame, size: frame.data.length, forwardable: this._window },
+                    'Splitting out forwardable part of a DATA frame.');
+    frame.data = data.slice(maxFrameLength);
+    this._parentPush({
+      type: 'DATA',
+      flags: {},
+      stream: frame.stream,
+      data: data.slice(0, maxFrameLength)
+    });
+    return null;
+  }
+};
+
+// Push `frame` into the flow control queue, or if it's empty, then directly into the output queue
+Flow.prototype.push = function push(frame) {
+  if (frame === null) {
+    this._log.debug('Enqueueing outgoing End Of Stream');
+  } else {
+    this._log.debug({ frame: frame }, 'Enqueueing outgoing frame');
+  }
+
+  var moreNeeded = null;
+  if (this._queue.length === 0) {
+    moreNeeded = this._push(frame);
+  }
+
+  if (moreNeeded === null) {
+    this._queue.push(frame);
+  }
+
+  return moreNeeded;
+};
+
+// `getLastQueuedFrame` returns the last frame in output buffers. This is primarily used by the
+// [Stream](stream.html) class to mark the last frame with END_STREAM flag.
+Flow.prototype.getLastQueuedFrame = function getLastQueuedFrame() {
+  var readableQueue = this._readableState.buffer;
+  return this._queue[this._queue.length - 1] || readableQueue[readableQueue.length - 1];
+};
+
+// Outgoing frames - managing the window size
+// ------------------------------------------
+
+// Flow control window size is manipulated using the `_increaseWindow` method.
+//
+// * Invoking it with `Infinite` means turning off flow control. Flow control cannot be enabled
+//   again once disabled. Any attempt to re-enable flow control MUST be rejected with a
+//   FLOW_CONTROL_ERROR error code.
+// * A sender MUST NOT allow a flow control window to exceed 2^31 - 1 bytes. The action taken
+//   depends on it being a stream or the connection itself.
+
+var WINDOW_SIZE_LIMIT = Math.pow(2, 31) - 1;
+
+Flow.prototype._increaseWindow = function _increaseWindow(size) {
+  if ((this._window === Infinity) && (size !== Infinity)) {
+    this._log.error('Trying to increase flow control window after flow control was turned off.');
+    this.emit('error', 'FLOW_CONTROL_ERROR');
+  } else {
+    this._log.trace({ window: this._window, by: size }, 'Increasing flow control window size.');
+    this._window += size;
+    if ((this._window !== Infinity) && (this._window > WINDOW_SIZE_LIMIT)) {
+      this._log.error('Flow control window grew too large.');
+      this.emit('error', 'FLOW_CONTROL_ERROR');
+    } else {
+      if (size != 0) {
+        this.emit('window_update');
+      }
+    }
+  }
+};
+
+// The `_updateWindow` method gets called every time there's an incoming WINDOW_UPDATE frame. It
+// modifies the flow control window:
+//
+// * Flow control can be disabled for an individual stream by sending a WINDOW_UPDATE with the
+//   END_FLOW_CONTROL flag set. The payload of a WINDOW_UPDATE frame that has the END_FLOW_CONTROL
+//   flag set is ignored.
+// * A sender that receives a WINDOW_UPDATE frame updates the corresponding window by the amount
+//   specified in the frame.
+Flow.prototype._updateWindow = function _updateWindow(frame) {
+  this._increaseWindow(frame.flags.END_FLOW_CONTROL ? Infinity : frame.window_size);
+};
+
+// A SETTINGS frame can alter the initial flow control window size for all current streams. When the
+// value of SETTINGS_INITIAL_WINDOW_SIZE changes, a receiver MUST adjust the size of all stream by
+// calling the `setInitialWindow` method. The window size has to be modified by the difference
+// between the new value and the old value.
+Flow.prototype.setInitialWindow = function setInitialWindow(initialWindow) {
+  this._increaseWindow(initialWindow - this._initialWindow);
+  this._initialWindow = initialWindow;
+};
diff --git a/testing/xpcshell/node-http2/lib/protocol/framer.js b/testing/xpcshell/node-http2/lib/protocol/framer.js
new file mode 100644
index 0000000000..055402f8d8
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/protocol/framer.js
@@ -0,0 +1,1166 @@
+// The framer consists of two [Transform Stream][1] subclasses that operate in [object mode][2]:
+// the Serializer and the Deserializer
+// [1]: https://nodejs.org/api/stream.html#stream_class_stream_transform
+// [2]: https://nodejs.org/api/stream.html#stream_new_stream_readable_options
+var assert = require('assert');
+
+var Transform = require('stream').Transform;
+
+exports.Serializer = Serializer;
+exports.Deserializer = Deserializer;
+
+var logData = Boolean(process.env.HTTP2_LOG_DATA);
+
+var MAX_PAYLOAD_SIZE = 16384;
+var WINDOW_UPDATE_PAYLOAD_SIZE = 4;
+
+// Serializer
+// ----------
+//
+//     Frame Objects
+//     * * * * * * * --+---------------------------
+//                     |                          |
+//                     v                          v           Buffers
+//      [] -----> Payload Ser. --[buffers]--> Header Ser. --> * * * *
+//     empty      adds payload                adds header
+//     array        buffers                     buffer
+
+function Serializer(log) {
+  this._log = log.child({ component: 'serializer' });
+  Transform.call(this, { objectMode: true });
+}
+Serializer.prototype = Object.create(Transform.prototype, { constructor: { value: Serializer } });
+
+// When there's an incoming frame object, it first generates the frame type specific part of the
+// frame (payload), and then then adds the header part which holds fields that are common to all
+// frame types (like the length of the payload).
+Serializer.prototype._transform = function _transform(frame, encoding, done) {
+  this._log.trace({ frame: frame }, 'Outgoing frame');
+
+  assert(frame.type in Serializer, 'Unknown frame type: ' + frame.type);
+
+  var buffers = [];
+  Serializer[frame.type](frame, buffers);
+  var length = Serializer.commonHeader(frame, buffers);
+
+  assert(length <= MAX_PAYLOAD_SIZE, 'Frame too large!');
+
+  for (var i = 0; i < buffers.length; i++) {
+    if (logData) {
+      this._log.trace({ data: buffers[i] }, 'Outgoing data');
+    }
+    this.push(buffers[i]);
+  }
+
+  done();
+};
+
+// Deserializer
+// ------------
+//
+//     Buffers
+//     * * * * --------+-------------------------
+//                     |                        |
+//                     v                        v           Frame Objects
+//      {} -----> Header Des. --{frame}--> Payload Des. --> * * * * * * *
+//     empty      adds parsed              adds parsed
+//     object  header properties        payload properties
+
+function Deserializer(log, role) {
+  this._role = role;
+  this._log = log.child({ component: 'deserializer' });
+  Transform.call(this, { objectMode: true });
+  this._next(COMMON_HEADER_SIZE);
+}
+Deserializer.prototype = Object.create(Transform.prototype, { constructor: { value: Deserializer } });
+
+// The Deserializer is stateful, and it's two main alternating states are: *waiting for header* and
+// *waiting for payload*. The state is stored in the boolean property `_waitingForHeader`.
+//
+// When entering a new state, a `_buffer` is created that will hold the accumulated data (header or
+// payload). The `_cursor` is used to track the progress.
+Deserializer.prototype._next = function(size) {
+  this._cursor = 0;
+  this._buffer = Buffer.alloc(size);
+  this._waitingForHeader = !this._waitingForHeader;
+  if (this._waitingForHeader) {
+    this._frame = {};
+  }
+};
+
+// Parsing an incoming buffer is an iterative process because it can hold multiple frames if it's
+// large enough. A `cursor` is used to track the progress in parsing the incoming `chunk`.
+Deserializer.prototype._transform = function _transform(chunk, encoding, done) {
+  var cursor = 0;
+
+  if (logData) {
+    this._log.trace({ data: chunk }, 'Incoming data');
+  }
+
+  while(cursor < chunk.length) {
+    // The content of an incoming buffer is first copied to `_buffer`. If it can't hold the full
+    // chunk, then only a part of it is copied.
+    var toCopy = Math.min(chunk.length - cursor, this._buffer.length - this._cursor);
+    chunk.copy(this._buffer, this._cursor, cursor, cursor + toCopy);
+    this._cursor += toCopy;
+    cursor += toCopy;
+
+    // When `_buffer` is full, it's content gets parsed either as header or payload depending on
+    // the actual state.
+
+    // If it's header then the parsed data is stored in a temporary variable and then the
+    // deserializer waits for the specified length payload.
+    if ((this._cursor === this._buffer.length) && this._waitingForHeader) {
+      var payloadSize = Deserializer.commonHeader(this._buffer, this._frame);
+      if (payloadSize <= MAX_PAYLOAD_SIZE) {
+        this._next(payloadSize);
+      } else {
+        this.emit('error', 'FRAME_SIZE_ERROR');
+        return;
+      }
+    }
+
+    // If it's payload then the the frame object is finalized and then gets pushed out.
+    // Unknown frame types are ignored.
+    //
+    // Note: If we just finished the parsing of a header and the payload length is 0, this branch
+    // will also run.
+    if ((this._cursor === this._buffer.length) && !this._waitingForHeader) {
+      if (this._frame.type) {
+        var error = Deserializer[this._frame.type](this._buffer, this._frame, this._role);
+        if (error) {
+          this._log.error('Incoming frame parsing error: ' + error);
+          this.emit('error', error);
+        } else {
+          this._log.trace({ frame: this._frame }, 'Incoming frame');
+          this.push(this._frame);
+        }
+      } else {
+        this._log.error('Unknown type incoming frame');
+        // Ignore it other than logging
+      }
+      this._next(COMMON_HEADER_SIZE);
+    }
+  }
+
+  done();
+};
+
+// [Frame Header](https://tools.ietf.org/html/rfc7540#section-4.1)
+// --------------------------------------------------------------
+//
+// HTTP/2 frames share a common base format consisting of a 9-byte header followed by 0 to 2^24 - 1
+// bytes of data.
+//
+// Additional size limits can be set by specific application uses. HTTP limits the frame size to
+// 16,384 octets by default, though this can be increased by a receiver.
+//
+//      0                   1                   2                   3
+//      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+//     |                 Length (24)                   |
+//     +---------------+---------------+---------------+
+//     |   Type (8)    |   Flags (8)   |
+//     +-+-----------------------------+---------------+---------------+
+//     |R|                 Stream Identifier (31)                      |
+//     +-+-------------------------------------------------------------+
+//     |                     Frame Data (0...)                       ...
+//     +---------------------------------------------------------------+
+//
+// The fields of the frame header are defined as:
+//
+// * Length:
+//   The length of the frame data expressed as an unsigned 24-bit integer. The 9 bytes of the frame
+//   header are not included in this value.
+//
+// * Type:
+//   The 8-bit type of the frame. The frame type determines how the remainder of the frame header
+//   and data are interpreted. Implementations MUST ignore unsupported and unrecognized frame types.
+//
+// * Flags:
+//   An 8-bit field reserved for frame-type specific boolean flags.
+//
+//   Flags are assigned semantics specific to the indicated frame type. Flags that have no defined
+//   semantics for a particular frame type MUST be ignored, and MUST be left unset (0) when sending.
+//
+// * R:
+//   A reserved 1-bit field. The semantics of this bit are undefined and the bit MUST remain unset
+//   (0) when sending and MUST be ignored when receiving.
+//
+// * Stream Identifier:
+//   A 31-bit stream identifier. The value 0 is reserved for frames that are associated with the
+//   connection as a whole as opposed to an individual stream.
+//
+// The structure and content of the remaining frame data is dependent entirely on the frame type.
+
+var COMMON_HEADER_SIZE = 9;
+
+var frameTypes = [];
+
+var frameFlags = {};
+
+var genericAttributes = ['type', 'flags', 'stream'];
+
+var typeSpecificAttributes = {};
+
+Serializer.commonHeader = function writeCommonHeader(frame, buffers) {
+  var headerBuffer = Buffer.alloc(COMMON_HEADER_SIZE);
+
+  var size = 0;
+  for (var i = 0; i < buffers.length; i++) {
+    size += buffers[i].length;
+  }
+  headerBuffer.writeUInt8(0, 0);
+  headerBuffer.writeUInt16BE(size, 1);
+
+  var typeId = frameTypes.indexOf(frame.type);  // If we are here then the type is valid for sure
+  headerBuffer.writeUInt8(typeId, 3);
+
+  var flagByte = 0;
+  for (var flag in frame.flags) {
+    var position = frameFlags[frame.type].indexOf(flag);
+    assert(position !== -1, 'Unknown flag for frame type ' + frame.type + ': ' + flag);
+    if (frame.flags[flag]) {
+      flagByte |= (1 << position);
+    }
+  }
+  headerBuffer.writeUInt8(flagByte, 4);
+
+  assert((0 <= frame.stream) && (frame.stream < 0x7fffffff), frame.stream);
+  headerBuffer.writeUInt32BE(frame.stream || 0, 5);
+
+  buffers.unshift(headerBuffer);
+
+  return size;
+};
+
+Deserializer.commonHeader = function readCommonHeader(buffer, frame) {
+  if (buffer.length < 9) {
+    return 'FRAME_SIZE_ERROR';
+  }
+
+  var totallyWastedByte = buffer.readUInt8(0);
+  var length = buffer.readUInt16BE(1);
+  // We do this just for sanity checking later on, to make sure no one sent us a
+  // frame that's super large.
+  length += totallyWastedByte << 16;
+
+  frame.type = frameTypes[buffer.readUInt8(3)];
+  if (!frame.type) {
+    // We are required to ignore unknown frame types
+    return length;
+  }
+
+  frame.flags = {};
+  var flagByte = buffer.readUInt8(4);
+  var definedFlags = frameFlags[frame.type];
+  for (var i = 0; i < definedFlags.length; i++) {
+    frame.flags[definedFlags[i]] = Boolean(flagByte & (1 << i));
+  }
+
+  frame.stream = buffer.readUInt32BE(5) & 0x7fffffff;
+
+  return length;
+};
+
+// Frame types
+// ===========
+
+// Every frame type is registered in the following places:
+//
+// * `frameTypes`: a register of frame type codes (used by `commonHeader()`)
+// * `frameFlags`: a register of valid flags for frame types (used by `commonHeader()`)
+// * `typeSpecificAttributes`: a register of frame specific frame object attributes (used by
+//   logging code and also serves as documentation for frame objects)
+
+// [DATA Frames](https://tools.ietf.org/html/rfc7540#section-6.1)
+// ------------------------------------------------------------
+//
+// DATA frames (type=0x0) convey arbitrary, variable-length sequences of octets associated with a
+// stream.
+//
+// The DATA frame defines the following flags:
+//
+// * END_STREAM (0x1):
+//   Bit 1 being set indicates that this frame is the last that the endpoint will send for the
+//   identified stream.
+// * PADDED (0x08):
+//   Bit 4 being set indicates that the Pad Length field is present.
+
+frameTypes[0x0] = 'DATA';
+
+frameFlags.DATA = ['END_STREAM', 'RESERVED2', 'RESERVED4', 'PADDED'];
+
+typeSpecificAttributes.DATA = ['data'];
+
+Serializer.DATA = function writeData(frame, buffers) {
+  buffers.push(frame.data);
+};
+
+Deserializer.DATA = function readData(buffer, frame) {
+  var dataOffset = 0;
+  var paddingLength = 0;
+  if (frame.flags.PADDED) {
+    if (buffer.length < 1) {
+      // We must have at least one byte for padding control, but we don't. Bad peer!
+      return 'FRAME_SIZE_ERROR';
+    }
+    paddingLength = (buffer.readUInt8(dataOffset) & 0xff);
+    dataOffset = 1;
+  }
+
+  if (paddingLength) {
+    if (paddingLength >= (buffer.length - 1)) {
+      // We don't have enough room for the padding advertised - bad peer!
+      return 'FRAME_SIZE_ERROR';
+    }
+    frame.data = buffer.slice(dataOffset, -1 * paddingLength);
+  } else {
+    frame.data = buffer.slice(dataOffset);
+  }
+};
+
+// [HEADERS](https://tools.ietf.org/html/rfc7540#section-6.2)
+// --------------------------------------------------------------
+//
+// The HEADERS frame (type=0x1) allows the sender to create a stream.
+//
+// The HEADERS frame defines the following flags:
+//
+// * END_STREAM (0x1):
+//   Bit 1 being set indicates that this frame is the last that the endpoint will send for the
+//   identified stream.
+// * END_HEADERS (0x4):
+//   The END_HEADERS bit indicates that this frame contains the entire payload necessary to provide
+//   a complete set of headers.
+// * PADDED (0x08):
+//   Bit 4 being set indicates that the Pad Length field is present.
+// * PRIORITY (0x20):
+//   Bit 6 being set indicates that the Exlusive Flag (E), Stream Dependency, and Weight fields are
+//   present.
+
+frameTypes[0x1] = 'HEADERS';
+
+frameFlags.HEADERS = ['END_STREAM', 'RESERVED2', 'END_HEADERS', 'PADDED', 'RESERVED5', 'PRIORITY'];
+
+typeSpecificAttributes.HEADERS = ['priorityDependency', 'priorityWeight', 'exclusiveDependency', 'headers', 'data'];
+
+//      0                   1                   2                   3
+//      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+//     |Pad Length? (8)|
+//     +-+-------------+---------------+-------------------------------+
+//     |E|                 Stream Dependency? (31)                     |
+//     +-+-------------+-----------------------------------------------+
+//     |  Weight? (8)  |
+//     +-+-------------+-----------------------------------------------+
+//     |                   Header Block Fragment (*)                 ...
+//     +---------------------------------------------------------------+
+//     |                           Padding (*)                       ...
+//     +---------------------------------------------------------------+
+//
+// The payload of a HEADERS frame contains a Headers Block
+
+Serializer.HEADERS = function writeHeadersPriority(frame, buffers) {
+  if (frame.flags.PRIORITY) {
+    var buffer = Buffer.alloc(5);
+    assert((0 <= frame.priorityDependency) && (frame.priorityDependency <= 0x7fffffff), frame.priorityDependency);
+    buffer.writeUInt32BE(frame.priorityDependency, 0);
+    if (frame.exclusiveDependency) {
+      buffer[0] |= 0x80;
+    }
+    assert((0 <= frame.priorityWeight) && (frame.priorityWeight <= 0xff), frame.priorityWeight);
+    buffer.writeUInt8(frame.priorityWeight, 4);
+    buffers.push(buffer);
+  }
+  buffers.push(frame.data);
+};
+
+Deserializer.HEADERS = function readHeadersPriority(buffer, frame) {
+  var minFrameLength = 0;
+  if (frame.flags.PADDED) {
+    minFrameLength += 1;
+  }
+  if (frame.flags.PRIORITY) {
+    minFrameLength += 5;
+  }
+  if (buffer.length < minFrameLength) {
+    // Peer didn't send enough data - bad peer!
+    return 'FRAME_SIZE_ERROR';
+  }
+
+  var dataOffset = 0;
+  var paddingLength = 0;
+  if (frame.flags.PADDED) {
+    paddingLength = (buffer.readUInt8(dataOffset) & 0xff);
+    dataOffset = 1;
+  }
+
+  if (frame.flags.PRIORITY) {
+    var dependencyData = Buffer.alloc(4);
+    buffer.copy(dependencyData, 0, dataOffset, dataOffset + 4);
+    dataOffset += 4;
+    frame.exclusiveDependency = !!(dependencyData[0] & 0x80);
+    dependencyData[0] &= 0x7f;
+    frame.priorityDependency = dependencyData.readUInt32BE(0);
+    frame.priorityWeight = buffer.readUInt8(dataOffset);
+    dataOffset += 1;
+  }
+
+  if (paddingLength) {
+    if ((buffer.length - dataOffset) < paddingLength) {
+      // Not enough data left to satisfy the advertised padding - bad peer!
+      return 'FRAME_SIZE_ERROR';
+    }
+    frame.data = buffer.slice(dataOffset, -1 * paddingLength);
+  } else {
+    frame.data = buffer.slice(dataOffset);
+  }
+};
+
+// [PRIORITY](https://tools.ietf.org/html/rfc7540#section-6.3)
+// -------------------------------------------------------
+//
+// The PRIORITY frame (type=0x2) specifies the sender-advised priority of a stream.
+//
+// The PRIORITY frame does not define any flags.
+
+frameTypes[0x2] = 'PRIORITY';
+
+frameFlags.PRIORITY = [];
+
+typeSpecificAttributes.PRIORITY = ['priorityDependency', 'priorityWeight', 'exclusiveDependency'];
+
+//      0                   1                   2                   3
+//      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+//     |E|                 Stream Dependency? (31)                     |
+//     +-+-------------+-----------------------------------------------+
+//     |  Weight? (8)  |
+//     +-+-------------+
+//
+// The payload of a PRIORITY frame contains an exclusive bit, a 31-bit dependency, and an 8-bit weight
+
+Serializer.PRIORITY = function writePriority(frame, buffers) {
+  var buffer = Buffer.alloc(5);
+  assert((0 <= frame.priorityDependency) && (frame.priorityDependency <= 0x7fffffff), frame.priorityDependency);
+  buffer.writeUInt32BE(frame.priorityDependency, 0);
+  if (frame.exclusiveDependency) {
+    buffer[0] |= 0x80;
+  }
+  assert((0 <= frame.priorityWeight) && (frame.priorityWeight <= 0xff), frame.priorityWeight);
+  buffer.writeUInt8(frame.priorityWeight, 4);
+
+  buffers.push(buffer);
+};
+
+Deserializer.PRIORITY = function readPriority(buffer, frame) {
+  if (buffer.length < 5) {
+    // PRIORITY frames are 5 bytes long. Bad peer!
+    return 'FRAME_SIZE_ERROR';
+  }
+  var dependencyData = Buffer.alloc(4);
+  buffer.copy(dependencyData, 0, 0, 4);
+  frame.exclusiveDependency = !!(dependencyData[0] & 0x80);
+  dependencyData[0] &= 0x7f;
+  frame.priorityDependency = dependencyData.readUInt32BE(0);
+  frame.priorityWeight = buffer.readUInt8(4);
+};
+
+// [RST_STREAM](https://tools.ietf.org/html/rfc7540#section-6.4)
+// -----------------------------------------------------------
+//
+// The RST_STREAM frame (type=0x3) allows for abnormal termination of a stream.
+//
+// No type-flags are defined.
+
+frameTypes[0x3] = 'RST_STREAM';
+
+frameFlags.RST_STREAM = [];
+
+typeSpecificAttributes.RST_STREAM = ['error'];
+
+//      0                   1                   2                   3
+//      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+//     |                         Error Code (32)                       |
+//     +---------------------------------------------------------------+
+//
+// The RST_STREAM frame contains a single unsigned, 32-bit integer identifying the error
+// code (see Error Codes). The error code indicates why the stream is being terminated.
+
+Serializer.RST_STREAM = function writeRstStream(frame, buffers) {
+  var buffer = Buffer.alloc(4);
+  var code = errorCodes.indexOf(frame.error);
+  assert((0 <= code) && (code <= 0xffffffff), code);
+  buffer.writeUInt32BE(code, 0);
+  buffers.push(buffer);
+};
+
+Deserializer.RST_STREAM = function readRstStream(buffer, frame) {
+  if (buffer.length < 4) {
+    // RST_STREAM is 4 bytes long. Bad peer!
+    return 'FRAME_SIZE_ERROR';
+  }
+  frame.error = errorCodes[buffer.readUInt32BE(0)];
+  if (!frame.error) {
+    // Unknown error codes are considered equivalent to INTERNAL_ERROR
+    frame.error = 'INTERNAL_ERROR';
+  }
+};
+
+// [SETTINGS](https://tools.ietf.org/html/rfc7540#section-6.5)
+// -------------------------------------------------------
+//
+// The SETTINGS frame (type=0x4) conveys configuration parameters that affect how endpoints
+// communicate.
+//
+// The SETTINGS frame defines the following flag:
+
+// * ACK (0x1):
+//   Bit 1 being set indicates that this frame acknowledges receipt and application of the peer's
+//   SETTINGS frame.
+frameTypes[0x4] = 'SETTINGS';
+
+frameFlags.SETTINGS = ['ACK'];
+
+typeSpecificAttributes.SETTINGS = ['settings'];
+
+// The payload of a SETTINGS frame consists of zero or more settings. Each setting consists of a
+// 16-bit identifier, and an unsigned 32-bit value.
+//
+//      0                   1                   2                   3
+//      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+//     |         Identifier(16)          |        Value (32)           |
+//     +-----------------+---------------------------------------------+
+//     ...Value                          |
+//     +---------------------------------+
+//
+// Each setting in a SETTINGS frame replaces the existing value for that setting.  Settings are
+// processed in the order in which they appear, and a receiver of a SETTINGS frame does not need to
+// maintain any state other than the current value of settings.  Therefore, the value of a setting
+// is the last value that is seen by a receiver. This permits the inclusion of the same settings
+// multiple times in the same SETTINGS frame, though doing so does nothing other than waste
+// connection capacity.
+
+Serializer.SETTINGS = function writeSettings(frame, buffers) {
+  var settings = [], settingsLeft = Object.keys(frame.settings);
+  definedSettings.forEach(function(setting, id) {
+    if (setting.name in frame.settings) {
+      settingsLeft.splice(settingsLeft.indexOf(setting.name), 1);
+      var value = frame.settings[setting.name];
+      settings.push({ id: id, value: setting.flag ? Boolean(value) : value });
+    }
+  });
+  assert(settingsLeft.length === 0, 'Unknown settings: ' + settingsLeft.join(', '));
+
+  var buffer = Buffer.alloc(settings.length * 6);
+  for (var i = 0; i < settings.length; i++) {
+    buffer.writeUInt16BE(settings[i].id & 0xffff, i*6);
+    buffer.writeUInt32BE(settings[i].value, i*6 + 2);
+  }
+
+  buffers.push(buffer);
+};
+
+Deserializer.SETTINGS = function readSettings(buffer, frame, role) {
+  frame.settings = {};
+
+  // Receipt of a SETTINGS frame with the ACK flag set and a length
+  // field value other than 0 MUST be treated as a connection error
+  // (Section 5.4.1) of type FRAME_SIZE_ERROR.
+  if(frame.flags.ACK && buffer.length != 0) {
+    return 'FRAME_SIZE_ERROR';
+  }
+
+  if (buffer.length % 6 !== 0) {
+    return 'PROTOCOL_ERROR';
+  }
+  for (var i = 0; i < buffer.length / 6; i++) {
+    var id = buffer.readUInt16BE(i*6) & 0xffff;
+    var setting = definedSettings[id];
+    if (setting) {
+      if (role == 'CLIENT' && setting.name == 'SETTINGS_ENABLE_PUSH') {
+        return 'SETTINGS frame on client got SETTINGS_ENABLE_PUSH';
+      }
+      var value = buffer.readUInt32BE(i*6 + 2);
+      frame.settings[setting.name] = setting.flag ? Boolean(value & 0x1) : value;
+    }
+  }
+};
+
+// The following settings are defined:
+var definedSettings = [];
+
+// * SETTINGS_HEADER_TABLE_SIZE (1):
+//   Allows the sender to inform the remote endpoint of the size of the header compression table
+//   used to decode header blocks.
+definedSettings[1] = { name: 'SETTINGS_HEADER_TABLE_SIZE', flag: false };
+
+// * SETTINGS_ENABLE_PUSH (2):
+//   This setting can be use to disable server push. An endpoint MUST NOT send a PUSH_PROMISE frame
+//   if it receives this setting set to a value of 0. The default value is 1, which indicates that
+//   push is permitted.
+definedSettings[2] = { name: 'SETTINGS_ENABLE_PUSH', flag: true };
+
+// * SETTINGS_MAX_CONCURRENT_STREAMS (3):
+//   indicates the maximum number of concurrent streams that the sender will allow.
+definedSettings[3] = { name: 'SETTINGS_MAX_CONCURRENT_STREAMS', flag: false };
+
+// * SETTINGS_INITIAL_WINDOW_SIZE (4):
+//   indicates the sender's initial stream window size (in bytes) for new streams.
+definedSettings[4] = { name: 'SETTINGS_INITIAL_WINDOW_SIZE', flag: false };
+
+// * SETTINGS_MAX_FRAME_SIZE (5):
+//   indicates the maximum size of a frame the receiver will allow.
+definedSettings[5] = { name: 'SETTINGS_MAX_FRAME_SIZE', flag: false };
+
+// [PUSH_PROMISE](https://tools.ietf.org/html/rfc7540#section-6.6)
+// ---------------------------------------------------------------
+//
+// The PUSH_PROMISE frame (type=0x5) is used to notify the peer endpoint in advance of streams the
+// sender intends to initiate.
+//
+// The PUSH_PROMISE frame defines the following flags:
+//
+// * END_PUSH_PROMISE (0x4):
+//   The END_PUSH_PROMISE bit indicates that this frame contains the entire payload necessary to
+//   provide a complete set of headers.
+
+frameTypes[0x5] = 'PUSH_PROMISE';
+
+frameFlags.PUSH_PROMISE = ['RESERVED1', 'RESERVED2', 'END_PUSH_PROMISE', 'PADDED'];
+
+typeSpecificAttributes.PUSH_PROMISE = ['promised_stream', 'headers', 'data'];
+
+//      0                   1                   2                   3
+//      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+//     |Pad Length? (8)|
+//     +-+-------------+-----------------------------------------------+
+//     |X|                Promised-Stream-ID (31)                      |
+//     +-+-------------------------------------------------------------+
+//     |                 Header Block Fragment (*)                   ...
+//     +---------------------------------------------------------------+
+//     |                         Padding (*)                         ...
+//     +---------------------------------------------------------------+
+//
+// The PUSH_PROMISE frame includes the unsigned 31-bit identifier of
+// the stream the endpoint plans to create along with a minimal set of headers that provide
+// additional context for the stream.
+
+Serializer.PUSH_PROMISE = function writePushPromise(frame, buffers) {
+  var buffer = Buffer.alloc(4);
+
+  var promised_stream = frame.promised_stream;
+  assert((0 <= promised_stream) && (promised_stream <= 0x7fffffff), promised_stream);
+  buffer.writeUInt32BE(promised_stream, 0);
+
+  buffers.push(buffer);
+  buffers.push(frame.data);
+};
+
+Deserializer.PUSH_PROMISE = function readPushPromise(buffer, frame) {
+  if (buffer.length < 4) {
+    return 'FRAME_SIZE_ERROR';
+  }
+  var dataOffset = 0;
+  var paddingLength = 0;
+  if (frame.flags.PADDED) {
+    if (buffer.length < 5) {
+      return 'FRAME_SIZE_ERROR';
+    }
+    paddingLength = (buffer.readUInt8(dataOffset) & 0xff);
+    dataOffset = 1;
+  }
+  frame.promised_stream = buffer.readUInt32BE(dataOffset) & 0x7fffffff;
+  dataOffset += 4;
+  if (paddingLength) {
+    if ((buffer.length - dataOffset) < paddingLength) {
+      return 'FRAME_SIZE_ERROR';
+    }
+    frame.data = buffer.slice(dataOffset, -1 * paddingLength);
+  } else {
+    frame.data = buffer.slice(dataOffset);
+  }
+};
+
+// [PING](https://tools.ietf.org/html/rfc7540#section-6.7)
+// -----------------------------------------------
+//
+// The PING frame (type=0x6) is a mechanism for measuring a minimal round-trip time from the
+// sender, as well as determining whether an idle connection is still functional.
+//
+// The PING frame defines one type-specific flag:
+//
+// * ACK (0x1):
+//   Bit 1 being set indicates that this PING frame is a PING response.
+
+frameTypes[0x6] = 'PING';
+
+frameFlags.PING = ['ACK'];
+
+typeSpecificAttributes.PING = ['data'];
+
+// In addition to the frame header, PING frames MUST contain 8 additional octets of opaque data.
+
+Serializer.PING = function writePing(frame, buffers) {
+  buffers.push(frame.data);
+};
+
+Deserializer.PING = function readPing(buffer, frame) {
+  if (buffer.length !== 8) {
+    return 'FRAME_SIZE_ERROR';
+  }
+  frame.data = buffer;
+};
+
+// [GOAWAY](https://tools.ietf.org/html/rfc7540#section-6.8)
+// ---------------------------------------------------
+//
+// The GOAWAY frame (type=0x7) informs the remote peer to stop creating streams on this connection.
+//
+// The GOAWAY frame does not define any flags.
+
+frameTypes[0x7] = 'GOAWAY';
+
+frameFlags.GOAWAY = [];
+
+typeSpecificAttributes.GOAWAY = ['last_stream', 'error'];
+
+//      0                   1                   2                   3
+//      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+//     |X|                  Last-Stream-ID (31)                        |
+//     +-+-------------------------------------------------------------+
+//     |                      Error Code (32)                          |
+//     +---------------------------------------------------------------+
+//
+// The last stream identifier in the GOAWAY frame contains the highest numbered stream identifier
+// for which the sender of the GOAWAY frame has received frames on and might have taken some action
+// on.
+//
+// The GOAWAY frame also contains a 32-bit error code (see Error Codes) that contains the reason for
+// closing the connection.
+
+Serializer.GOAWAY = function writeGoaway(frame, buffers) {
+  var buffer = Buffer.alloc(8);
+
+  var last_stream = frame.last_stream;
+  assert((0 <= last_stream) && (last_stream <= 0x7fffffff), last_stream);
+  buffer.writeUInt32BE(last_stream, 0);
+
+  var code = errorCodes.indexOf(frame.error);
+  assert((0 <= code) && (code <= 0xffffffff), code);
+  buffer.writeUInt32BE(code, 4);
+
+  buffers.push(buffer);
+};
+
+Deserializer.GOAWAY = function readGoaway(buffer, frame) {
+  if (buffer.length !== 8) {
+    // GOAWAY must have 8 bytes
+    return 'FRAME_SIZE_ERROR';
+  }
+  frame.last_stream = buffer.readUInt32BE(0) & 0x7fffffff;
+  frame.error = errorCodes[buffer.readUInt32BE(4)];
+  if (!frame.error) {
+    // Unknown error types are to be considered equivalent to INTERNAL ERROR
+    frame.error = 'INTERNAL_ERROR';
+  }
+};
+
+// [WINDOW_UPDATE](https://tools.ietf.org/html/rfc7540#section-6.9)
+// -----------------------------------------------------------------
+//
+// The WINDOW_UPDATE frame (type=0x8) is used to implement flow control.
+//
+// The WINDOW_UPDATE frame does not define any flags.
+
+frameTypes[0x8] = 'WINDOW_UPDATE';
+
+frameFlags.WINDOW_UPDATE = [];
+
+typeSpecificAttributes.WINDOW_UPDATE = ['window_size'];
+
+// The payload of a WINDOW_UPDATE frame is a 32-bit value indicating the additional number of bytes
+// that the sender can transmit in addition to the existing flow control window. The legal range
+// for this field is 1 to 2^31 - 1 (0x7fffffff) bytes; the most significant bit of this value is
+// reserved.
+
+Serializer.WINDOW_UPDATE = function writeWindowUpdate(frame, buffers) {
+  var buffer = Buffer.alloc(4);
+
+  var window_size = frame.window_size;
+  assert((0 < window_size) && (window_size <= 0x7fffffff), window_size);
+  buffer.writeUInt32BE(window_size, 0);
+
+  buffers.push(buffer);
+};
+
+Deserializer.WINDOW_UPDATE = function readWindowUpdate(buffer, frame) {
+  if (buffer.length !== WINDOW_UPDATE_PAYLOAD_SIZE) {
+    return 'FRAME_SIZE_ERROR';
+  }
+  frame.window_size = buffer.readUInt32BE(0) & 0x7fffffff;
+  if (frame.window_size === 0) {
+    return 'PROTOCOL_ERROR';
+  }
+};
+
+// [CONTINUATION](https://tools.ietf.org/html/rfc7540#section-6.10)
+// ------------------------------------------------------------
+//
+// The CONTINUATION frame (type=0x9) is used to continue a sequence of header block fragments.
+//
+// The CONTINUATION frame defines the following flag:
+//
+// * END_HEADERS (0x4):
+//   The END_HEADERS bit indicates that this frame ends the sequence of header block fragments
+//   necessary to provide a complete set of headers.
+
+frameTypes[0x9] = 'CONTINUATION';
+
+frameFlags.CONTINUATION = ['RESERVED1', 'RESERVED2', 'END_HEADERS'];
+
+typeSpecificAttributes.CONTINUATION = ['headers', 'data'];
+
+Serializer.CONTINUATION = function writeContinuation(frame, buffers) {
+  buffers.push(frame.data);
+};
+
+Deserializer.CONTINUATION = function readContinuation(buffer, frame) {
+  frame.data = buffer;
+};
+
+// [ALTSVC](https://tools.ietf.org/html/rfc7838#section-4)
+// ------------------------------------------------------------
+//
+// The ALTSVC frame (type=0xA) advertises the availability of an alternative service to the client.
+//
+// The ALTSVC frame does not define any flags.
+
+frameTypes[0xA] = 'ALTSVC';
+
+frameFlags.ALTSVC = [];
+
+//     0                   1                   2                   3
+//     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+//    |         Origin-Len (16)       | Origin? (*)                 ...
+//    +-------------------------------+----------------+--------------+
+//    |                   Alt-Svc-Field-Value (*)                   ...
+//    +---------------------------------------------------------------+
+//
+// The ALTSVC frame contains the following fields:
+//
+// Origin-Len: An unsigned, 16-bit integer indicating the length, in
+//    octets, of the Origin field.
+//
+// Origin: An OPTIONAL sequence of characters containing ASCII
+//    serialisation of an origin ([RFC6454](https://tools.ietf.org/html/rfc6454),
+//    Section 6.2) that the alternate service is applicable to.
+//
+// Alt-Svc-Field-Value: A sequence of octets (length determined by
+//    subtracting the length of all preceding fields from the frame
+//    length) containing a value identical to the Alt-Svc field value
+//    defined in (Section 3)[https://tools.ietf.org/html/rfc7838#section-3]
+//    (ABNF production "Alt-Svc").
+
+typeSpecificAttributes.ALTSVC = ['maxAge', 'port', 'protocolID', 'host',
+                                 'origin'];
+
+function istchar(c) {
+  return ('!#$&\'*+-.^_`|~1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.indexOf(c) > -1);
+}
+
+function hexencode(s) {
+  var t = '';
+  for (var i = 0; i < s.length; i++) {
+    if (!istchar(s[i])) {
+      t += '%';
+      t += Buffer.from(s[i]).toString('hex');
+    } else {
+      t += s[i];
+    }
+  }
+  return t;
+}
+
+Serializer.ALTSVC = function writeAltSvc(frame, buffers) {
+  var buffer = Buffer.alloc(2);
+  buffer.writeUInt16BE(frame.origin.length, 0);
+  buffers.push(buffer);
+  buffers.push(Buffer.from(frame.origin, 'ascii'));
+
+  var fieldValue = hexencode(frame.protocolID) + '="' + frame.host + ':' + frame.port + '"';
+  if (frame.maxAge !== 86400) { // 86400 is the default
+    fieldValue += "; ma=" + frame.maxAge;
+  }
+
+  buffers.push(Buffer.from(fieldValue, 'ascii'));
+};
+
+function stripquotes(s) {
+  var start = 0;
+  var end = s.length;
+  while ((start < end) && (s[start] === '"')) {
+    start++;
+  }
+  while ((end > start) && (s[end - 1] === '"')) {
+    end--;
+  }
+  if (start >= end) {
+    return "";
+  }
+  return s.substring(start, end);
+}
+
+function splitNameValue(nvpair) {
+  var eq = -1;
+  var inQuotes = false;
+
+  for (var i = 0; i < nvpair.length; i++) {
+    if (nvpair[i] === '"') {
+      inQuotes = !inQuotes;
+      continue;
+    }
+    if (inQuotes) {
+      continue;
+    }
+    if (nvpair[i] === '=') {
+      eq = i;
+      break;
+    }
+  }
+
+  if (eq === -1) {
+    return {'name': nvpair, 'value': null};
+  }
+
+  var name = stripquotes(nvpair.substring(0, eq).trim());
+  var value = stripquotes(nvpair.substring(eq + 1).trim());
+  return {'name': name, 'value': value};
+}
+
+function splitHeaderParameters(hv) {
+  return parseHeaderValue(hv, ';', splitNameValue);
+}
+
+function parseHeaderValue(hv, separator, callback) {
+  var start = 0;
+  var inQuotes = false;
+  var values = [];
+
+  for (var i = 0; i < hv.length; i++) {
+    if (hv[i] === '"') {
+      inQuotes = !inQuotes;
+      continue;
+    }
+    if (inQuotes) {
+      // Just skip this
+      continue;
+    }
+    if (hv[i] === separator) {
+      var newValue = hv.substring(start, i).trim();
+      if (newValue.length > 0) {
+        newValue = callback(newValue);
+        values.push(newValue);
+      }
+      start = i + 1;
+    }
+  }
+
+  var newValue = hv.substring(start).trim();
+  if (newValue.length > 0) {
+    newValue = callback(newValue);
+    values.push(newValue);
+  }
+
+  return values;
+}
+
+function rsplit(s, delim, count) {
+  var nsplits = 0;
+  var end = s.length;
+  var rval = [];
+  for (var i = s.length - 1; i >= 0; i--) {
+    if (s[i] === delim) {
+      var t = s.substring(i + 1, end);
+      end = i;
+      rval.unshift(t);
+      nsplits++;
+      if (nsplits === count) {
+        break;
+      }
+    }
+  }
+  if (end !== 0) {
+    rval.unshift(s.substring(0, end));
+  }
+  return rval;
+}
+
+function ishex(c) {
+  return ('0123456789ABCDEFabcdef'.indexOf(c) > -1);
+}
+
+function unescape(s) {
+  var i = 0;
+  var t = '';
+  while (i < s.length) {
+    if (s[i] != '%' || !ishex(s[i + 1]) || !ishex(s[i + 2])) {
+      t += s[i];
+    } else {
+      ++i;
+      var hexvalue = '';
+      if (i < s.length) {
+        hexvalue += s[i];
+        ++i;
+      }
+      if (i < s.length) {
+        hexvalue += s[i];
+      }
+      if (hexvalue.length > 0) {
+        t += Buffer.from(hexvalue, 'hex').toString();
+      } else {
+        t += '%';
+      }
+    }
+
+    ++i;
+  }
+  return t;
+}
+
+Deserializer.ALTSVC = function readAltSvc(buffer, frame) {
+  if (buffer.length < 2) {
+    return 'FRAME_SIZE_ERROR';
+  }
+  var originLength = buffer.readUInt16BE(0);
+  if ((buffer.length - 2) < originLength) {
+    return 'FRAME_SIZE_ERROR';
+  }
+  frame.origin = buffer.toString('ascii', 2, 2 + originLength);
+  var fieldValue = buffer.toString('ascii', 2 + originLength);
+  var values = parseHeaderValue(fieldValue, ',', splitHeaderParameters);
+  if (values.length > 1) {
+    // TODO - warn that we only use one here
+  }
+  if (values.length === 0) {
+    // Well that's a malformed frame. Just ignore it.
+    return;
+  }
+
+  var chosenAltSvc = values[0];
+  frame.maxAge = 86400; // Default
+  for (var i = 0; i < chosenAltSvc.length; i++) {
+    if (i === 0) {
+      // This corresponds to the protocolID="<host>:<port>" item
+      frame.protocolID = unescape(chosenAltSvc[i].name);
+      var hostport = rsplit(chosenAltSvc[i].value, ':', 1);
+      frame.host = hostport[0];
+      frame.port = parseInt(hostport[1], 10);
+    } else if (chosenAltSvc[i].name == 'ma') {
+      frame.maxAge = parseInt(chosenAltSvc[i].value, 10);
+    }
+    // Otherwise, we just ignore this
+  }
+};
+
+// frame 0xB was BLOCKED and some versions of chrome will
+// throw PROTOCOL_ERROR upon seeing it with non 0 payload
+
+frameTypes[0xC] = 'ORIGIN';
+frameFlags.ORIGIN = [];
+typeSpecificAttributes.ORIGIN = ['originList'];
+
+Serializer.ORIGIN = function writeOrigin(frame, buffers) {
+  for (var i = 0; i < frame.originList.length; i++) {
+    var buffer = Buffer.alloc(2);
+    buffer.writeUInt16BE(frame.originList[i].length, 0);
+    buffers.push(buffer);
+    buffers.push(Buffer.from(frame.originList[i], 'ascii'));
+  }
+};
+
+Deserializer.ORIGIN = function readOrigin(buffer, frame) {
+    // ignored
+};
+
+
+// [Error Codes](https://tools.ietf.org/html/rfc7540#section-7)
+// ------------------------------------------------------------
+
+var errorCodes = [
+  'NO_ERROR',
+  'PROTOCOL_ERROR',
+  'INTERNAL_ERROR',
+  'FLOW_CONTROL_ERROR',
+  'SETTINGS_TIMEOUT',
+  'STREAM_CLOSED',
+  'FRAME_SIZE_ERROR',
+  'REFUSED_STREAM',
+  'CANCEL',
+  'COMPRESSION_ERROR',
+  'CONNECT_ERROR',
+  'ENHANCE_YOUR_CALM',
+  'INADEQUATE_SECURITY',
+  'HTTP_1_1_REQUIRED'
+];
+
+// Logging
+// -------
+
+// [Bunyan serializers](https://github.com/trentm/node-bunyan#serializers) to improve logging output
+// for debug messages emitted in this component.
+exports.serializers = {};
+
+// * `frame` serializer: it transforms data attributes from Buffers to hex strings and filters out
+//   flags that are not present.
+var frameCounter = 0;
+exports.serializers.frame = function(frame) {
+  if (!frame) {
+    return null;
+  }
+
+  if ('id' in frame) {
+    return frame.id;
+  }
+
+  frame.id = frameCounter;
+  frameCounter += 1;
+
+  var logEntry = { id: frame.id };
+  genericAttributes.concat(typeSpecificAttributes[frame.type]).forEach(function(name) {
+    logEntry[name] = frame[name];
+  });
+
+  if (frame.data instanceof Buffer) {
+    if (logEntry.data.length > 50) {
+      logEntry.data = frame.data.slice(0, 47).toString('hex') + '...';
+    } else {
+      logEntry.data = frame.data.toString('hex');
+    }
+
+    if (!('length' in logEntry)) {
+      logEntry.length = frame.data.length;
+    }
+  }
+
+  if (frame.promised_stream instanceof Object) {
+    logEntry.promised_stream = 'stream-' + frame.promised_stream.id;
+  }
+
+  logEntry.flags = Object.keys(frame.flags || {}).filter(function(name) {
+    return frame.flags[name] === true;
+  });
+
+  return logEntry;
+};
+
+// * `data` serializer: it simply transforms a buffer to a hex string.
+exports.serializers.data = function(data) {
+  return data.toString('hex');
+};
diff --git a/testing/xpcshell/node-http2/lib/protocol/index.js b/testing/xpcshell/node-http2/lib/protocol/index.js
new file mode 100644
index 0000000000..0f3720e2ce
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/protocol/index.js
@@ -0,0 +1,91 @@
+// This is an implementation of the [HTTP/2][http2]
+// framing layer for [node.js][node].
+//
+// The main building blocks are [node.js streams][node-stream] that are connected through pipes.
+//
+// The main components are:
+//
+// * [Endpoint](endpoint.html): represents an HTTP/2 endpoint (client or server). It's
+//   responsible for the the first part of the handshake process (sending/receiving the
+//   [connection header][http2-connheader]) and manages other components (framer, compressor,
+//   connection, streams) that make up a client or server.
+//
+// * [Connection](connection.html): multiplexes the active HTTP/2 streams, manages connection
+//   lifecycle and settings, and responsible for enforcing the connection level limits (flow
+//   control, initiated stream limit)
+//
+// * [Stream](stream.html): implementation of the [HTTP/2 stream concept][http2-stream].
+//   Implements the [stream state machine][http2-streamstate] defined by the standard, provides
+//   management methods and events for using the stream (sending/receiving headers, data, etc.),
+//   and enforces stream level constraints (flow control, sending only legal frames).
+//
+// * [Flow](flow.html): implements flow control for Connection and Stream as parent class.
+//
+// * [Compressor and Decompressor](compressor.html): compression and decompression of HEADER and
+//   PUSH_PROMISE frames
+//
+// * [Serializer and Deserializer](framer.html): the lowest layer in the stack that transforms
+//   between the binary and the JavaScript object representation of HTTP/2 frames
+//
+// [http2]:               https://tools.ietf.org/html/rfc7540
+// [http2-connheader]:    https://tools.ietf.org/html/rfc7540#section-3.5
+// [http2-stream]:        https://tools.ietf.org/html/rfc7540#section-5
+// [http2-streamstate]:   https://tools.ietf.org/html/rfc7540#section-5.1
+// [node]:                https://nodejs.org/
+// [node-stream]:         https://nodejs.org/api/stream.html
+// [node-https]:          https://nodejs.org/api/https.html
+// [node-http]:           https://nodejs.org/api/http.html
+
+exports.VERSION = 'h2';
+
+exports.Endpoint = require('./endpoint').Endpoint;
+
+/* Bunyan serializers exported by submodules that are worth adding when creating a logger. */
+exports.serializers = {};
+var modules = ['./framer', './compressor', './flow', './connection', './stream', './endpoint'];
+modules.map(require).forEach(function(module) {
+  for (var name in module.serializers) {
+    exports.serializers[name] = module.serializers[name];
+  }
+});
+
+/*
+              Stream API            Endpoint API
+              Stream data
+
+             |            ^        |            ^
+             |            |        |            |
+             |            |        |            |
+ +-----------|------------|---------------------------------------+
+ |           |            |   Endpoint                            |
+ |           |            |                                       |
+ |   +-------|------------|-----------------------------------+   |
+ |   |       |            |  Connection                       |   |
+ |   |       v            |                                   |   |
+ |   |  +-----------------------+  +--------------------      |   |
+ |   |  |        Stream         |  |         Stream      ...  |   |
+ |   |  +-----------------------+  +--------------------      |   |
+ |   |       |            ^              |            ^       |   |
+ |   |       v            |              v            |       |   |
+ |   |       +------------+--+--------+--+------------+- ...  |   |
+ |   |                       |        ^                       |   |
+ |   |                       |        |                       |   |
+ |   +-----------------------|--------|-----------------------+   |
+ |                           |        |                           |
+ |                           v        |                           |
+ |   +--------------------------+  +--------------------------+   |
+ |   |        Compressor        |  |       Decompressor       |   |
+ |   +--------------------------+  +--------------------------+   |
+ |                           |        ^                           |
+ |                           v        |                           |
+ |   +--------------------------+  +--------------------------+   |
+ |   |        Serializer        |  |       Deserializer       |   |
+ |   +--------------------------+  +--------------------------+   |
+ |                           |        ^                           |
+ +---------------------------|--------|---------------------------+
+                             |        |
+                             v        |
+
+                              Raw data
+
+*/
diff --git a/testing/xpcshell/node-http2/lib/protocol/stream.js b/testing/xpcshell/node-http2/lib/protocol/stream.js
new file mode 100644
index 0000000000..b80dff0098
--- /dev/null
+++ b/testing/xpcshell/node-http2/lib/protocol/stream.js
@@ -0,0 +1,677 @@
+var assert = require('assert');
+
+// The Stream class
+// ================
+
+// Stream is a [Duplex stream](https://nodejs.org/api/stream.html#stream_class_stream_duplex)
+// subclass that implements the [HTTP/2 Stream](https://tools.ietf.org/html/rfc7540#section-5)
+// concept. It has two 'sides': one that is used by the user to send/receive data (the `stream`
+// object itself) and one that is used by a Connection to read/write frames to/from the other peer
+// (`stream.upstream`).
+
+var Duplex = require('stream').Duplex;
+
+exports.Stream = Stream;
+
+// Public API
+// ----------
+
+// * **new Stream(log, connection)**: create a new Stream
+//
+// * **Event: 'headers' (headers)**: signals incoming headers
+//
+// * **Event: 'promise' (stream, headers)**: signals an incoming push promise
+//
+// * **Event: 'priority' (priority)**: signals a priority change. `priority` is a number between 0
+//     (highest priority) and 2^31-1 (lowest priority). Default value is 2^30.
+//
+// * **Event: 'error' (type)**: signals an error
+//
+// * **headers(headers)**: send headers
+//
+// * **promise(headers): Stream**: promise a stream
+//
+// * **priority(priority)**: set the priority of the stream. Priority can be changed by the peer
+//   too, but once it is set locally, it can not be changed remotely.
+//
+// * **reset(error)**: reset the stream with an error code
+//
+// * **upstream**: a [Flow](flow.js) that is used by the parent connection to write/read frames
+//   that are to be sent/arrived to/from the peer and are related to this stream.
+//
+// Headers are always in the [regular node.js header format][1].
+// [1]: https://nodejs.org/api/http.html#http_message_headers
+
+// Constructor
+// -----------
+
+// The main aspects of managing the stream are:
+function Stream(log, connection) {
+  Duplex.call(this);
+
+  // * logging
+  this._log = log.child({ component: 'stream', s: this });
+
+  // * receiving and sending stream management commands
+  this._initializeManagement();
+
+  // * sending and receiving frames to/from the upstream connection
+  this._initializeDataFlow();
+
+  // * maintaining the state of the stream (idle, open, closed, etc.) and error detection
+  this._initializeState();
+
+  this.connection = connection;
+  this.sentEndStream = false;
+}
+
+Stream.prototype = Object.create(Duplex.prototype, { constructor: { value: Stream } });
+
+// Managing the stream
+// -------------------
+
+// the default stream priority is 2^30
+var DEFAULT_PRIORITY = Math.pow(2, 30);
+var MAX_PRIORITY = Math.pow(2, 31) - 1;
+
+// PUSH_PROMISE and HEADERS are forwarded to the user through events.
+Stream.prototype._initializeManagement = function _initializeManagement() {
+  this._resetSent = false;
+  this._priority = DEFAULT_PRIORITY;
+  this._letPeerPrioritize = true;
+};
+
+Stream.prototype.promise = function promise(headers) {
+  var stream = new Stream(this._log, this.connection);
+  stream._priority = Math.min(this._priority + 1, MAX_PRIORITY);
+  this._pushUpstream({
+    type: 'PUSH_PROMISE',
+    flags: {},
+    stream: this.id,
+    promised_stream: stream,
+    headers: headers
+  });
+  return stream;
+};
+
+Stream.prototype._onPromise = function _onPromise(frame) {
+  this.emit('promise', frame.promised_stream, frame.headers);
+};
+
+Stream.prototype.headers = function headers(headers) {
+  this._pushUpstream({
+    type: 'HEADERS',
+    flags: {},
+    stream: this.id,
+    headers: headers
+  });
+};
+
+Stream.prototype.trailers = function trailers(trailers) {
+  this.sentEndStream = true;
+  this._pushUpstream({
+    type: 'HEADERS',
+    flags: {'END_STREAM': true},
+    stream: this.id,
+    headers: trailers
+  });
+};
+
+Stream.prototype._onHeaders = function _onHeaders(frame) {
+  if (frame.priority !== undefined) {
+    this.priority(frame.priority, true);
+  }
+  this.emit('headers', frame.headers);
+};
+
+Stream.prototype.priority = function priority(priority, peer) {
+  if ((peer && this._letPeerPrioritize) || !peer) {
+    if (!peer) {
+      this._letPeerPrioritize = false;
+
+      var lastFrame = this.upstream.getLastQueuedFrame();
+      if (lastFrame && ((lastFrame.type === 'HEADERS') || (lastFrame.type === 'PRIORITY'))) {
+        lastFrame.priority = priority;
+      } else {
+        this._pushUpstream({
+          type: 'PRIORITY',
+          flags: {},
+          stream: this.id,
+          priority: priority
+        });
+      }
+    }
+
+    this._log.debug({ priority: priority }, 'Changing priority');
+    this.emit('priority', priority);
+    this._priority = priority;
+  }
+};
+
+Stream.prototype._onPriority = function _onPriority(frame) {
+  this.priority(frame.priority, true);
+};
+
+// Resetting the stream. Normally, an endpoint SHOULD NOT send more than one RST_STREAM frame for
+// any stream.
+Stream.prototype.reset = function reset(error) {
+  if (!this._resetSent) {
+    this._resetSent = true;
+    this._pushUpstream({
+      type: 'RST_STREAM',
+      flags: {},
+      stream: this.id,
+      error: error
+    });
+  }
+};
+
+// Specify an alternate service for the origin of this stream
+Stream.prototype.altsvc = function altsvc(host, port, protocolID, maxAge, origin) {
+    var stream;
+    if (origin) {
+        stream = 0;
+    } else {
+        stream = this.id;
+    }
+    this._pushUpstream({
+        type: 'ALTSVC',
+        flags: {},
+        stream: stream,
+        host: host,
+        port: port,
+        protocolID: protocolID,
+        origin: origin,
+        maxAge: maxAge
+    });
+};
+
+// Data flow
+// ---------
+
+// The incoming and the generated outgoing frames are received/transmitted on the `this.upstream`
+// [Flow](flow.html). The [Connection](connection.html) object instantiating the stream will read
+// and write frames to/from it. The stream itself is a regular [Duplex stream][1], and is used by
+// the user to write or read the body of the request.
+// [1]: https://nodejs.org/api/stream.html#stream_class_stream_duplex
+
+//     upstream side                  stream                  user side
+//
+//                    +------------------------------------+
+//                    |                                    |
+//                    +------------------+                 |
+//                    |     upstream     |                 |
+//                    |                  |                 |
+//                    +--+               |              +--|
+//            read()  |  |  _send()      |    _write()  |  |  write(buf)
+//     <--------------|B |<--------------|--------------| B|<------------
+//                    |  |               |              |  |
+//            frames  +--+               |              +--|  buffers
+//                    |  |               |              |  |
+//     -------------->|B |---------------|------------->| B|------------>
+//      write(frame)  |  |  _receive()   |     _read()  |  |  read()
+//                    +--+               |              +--|
+//                    |                  |                 |
+//                    |                  |                 |
+//                    +------------------+                 |
+//                    |                                    |
+//                    +------------------------------------+
+//
+//     B: input or output buffer
+
+var Flow = require('./flow').Flow;
+
+Stream.prototype._initializeDataFlow = function _initializeDataFlow() {
+  this.id = undefined;
+
+  this._ended = false;
+
+  this.upstream = new Flow();
+  this.upstream._log = this._log;
+  this.upstream._send = this._send.bind(this);
+  this.upstream._receive = this._receive.bind(this);
+  this.upstream.write = this._writeUpstream.bind(this);
+  this.upstream.on('error', this.emit.bind(this, 'error'));
+
+  this.on('finish', this._finishing);
+};
+
+Stream.prototype._pushUpstream = function _pushUpstream(frame) {
+  this.upstream.push(frame);
+  this._transition(true, frame);
+};
+
+// Overriding the upstream's `write` allows us to act immediately instead of waiting for the input
+// queue to empty. This is important in case of control frames.
+Stream.prototype._writeUpstream = function _writeUpstream(frame) {
+  this._log.debug({ frame: frame }, 'Receiving frame');
+
+  var moreNeeded = Flow.prototype.write.call(this.upstream, frame);
+
+  // * Transition to a new state if that's the effect of receiving the frame
+  this._transition(false, frame);
+
+  // * If it's a control frame. Call the appropriate handler method.
+  if (frame.type === 'HEADERS') {
+    if (this._processedHeaders && !frame.flags['END_STREAM']) {
+      this.emit('error', 'PROTOCOL_ERROR');
+    }
+    this._processedHeaders = true;
+    this._onHeaders(frame);
+  } else if (frame.type === 'PUSH_PROMISE') {
+    this._onPromise(frame);
+  } else if (frame.type === 'PRIORITY') {
+    this._onPriority(frame);
+  } else if (frame.type === 'ALTSVC') {
+    // TODO
+  } else if (frame.type === 'ORIGIN') {
+    // TODO
+  }
+
+  // * If it's an invalid stream level frame, emit error
+  else if ((frame.type !== 'DATA') &&
+           (frame.type !== 'WINDOW_UPDATE') &&
+           (frame.type !== 'RST_STREAM')) {
+    this._log.error({ frame: frame }, 'Invalid stream level frame');
+    this.emit('error', 'PROTOCOL_ERROR');
+  }
+
+  return moreNeeded;
+};
+
+// The `_receive` method (= `upstream._receive`) gets called when there's an incoming frame.
+Stream.prototype._receive = function _receive(frame, ready) {
+  // * If it's a DATA frame, then push the payload into the output buffer on the other side.
+  //   Call ready when the other side is ready to receive more.
+  if (!this._ended && (frame.type === 'DATA')) {
+    var moreNeeded = this.push(frame.data);
+    if (!moreNeeded) {
+      this._receiveMore = ready;
+    }
+  }
+
+  // * Any frame may signal the end of the stream with the END_STREAM flag
+  if (!this._ended && (frame.flags.END_STREAM || (frame.type === 'RST_STREAM'))) {
+    this.push(null);
+    this._ended = true;
+  }
+
+  // * Postpone calling `ready` if `push()` returned a falsy value
+  if (this._receiveMore !== ready) {
+    ready();
+  }
+};
+
+// The `_read` method is called when the user side is ready to receive more data. If there's a
+// pending write on the upstream, then call its pending ready callback to receive more frames.
+Stream.prototype._read = function _read() {
+  if (this._receiveMore) {
+    var receiveMore = this._receiveMore;
+    delete this._receiveMore;
+    receiveMore();
+  }
+};
+
+// The `write` method gets called when there's a write request from the user.
+Stream.prototype._write = function _write(buffer, encoding, ready) {
+  // * Chunking is done by the upstream Flow.
+  var moreNeeded = this._pushUpstream({
+    type: 'DATA',
+    flags: {},
+    stream: this.id,
+    data: buffer
+  });
+
+  // * Call ready when upstream is ready to receive more frames.
+  if (moreNeeded) {
+    ready();
+  } else {
+    this._sendMore = ready;
+  }
+};
+
+// The `_send` (= `upstream._send`) method is called when upstream is ready to receive more frames.
+// If there's a pending write on the user side, then call its pending ready callback to receive more
+// writes.
+Stream.prototype._send = function _send() {
+  if (this._sendMore) {
+    var sendMore = this._sendMore;
+    delete this._sendMore;
+    sendMore();
+  }
+};
+
+// When the stream is finishing (the user calls `end()` on it), then we have to set the `END_STREAM`
+// flag on the last frame. If there's no frame in the queue, or if it doesn't support this flag,
+// then we create a 0 length DATA frame. We could do this all the time, but putting the flag on an
+// existing frame is a nice optimization.
+var emptyBuffer = Buffer.alloc(0);
+Stream.prototype._finishing = function _finishing() {
+  var endFrame = {
+    type: 'DATA',
+    flags: { END_STREAM: true },
+    stream: this.id,
+    data: emptyBuffer
+  };
+
+  if (this.sentEndStream) {
+    this._log.debug('Already sent END_STREAM, not sending again.');
+    return;
+  }
+
+  this.sentEndStream = true;
+  var lastFrame = this.upstream.getLastQueuedFrame();
+  if (lastFrame && ((lastFrame.type === 'DATA') || (lastFrame.type === 'HEADERS'))) {
+    this._log.debug({ frame: lastFrame }, 'Marking last frame with END_STREAM flag.');
+    lastFrame.flags.END_STREAM = true;
+    this._transition(true, endFrame);
+  } else {
+    this._pushUpstream(endFrame);
+  }
+};
+
+// [Stream States](https://tools.ietf.org/html/rfc7540#section-5.1)
+// ----------------
+//
+//                           +--------+
+//                     PP    |        |    PP
+//                  ,--------|  idle  |--------.
+//                 /         |        |         \
+//                v          +--------+          v
+//         +----------+          |           +----------+
+//         |          |          | H         |          |
+//     ,---| reserved |          |           | reserved |---.
+//     |   | (local)  |          v           | (remote) |   |
+//     |   +----------+      +--------+      +----------+   |
+//     |      |          ES  |        |  ES          |      |
+//     |      | H    ,-------|  open  |-------.      | H    |
+//     |      |     /        |        |        \     |      |
+//     |      v    v         +--------+         v    v      |
+//     |   +----------+          |           +----------+   |
+//     |   |   half   |          |           |   half   |   |
+//     |   |  closed  |          | R         |  closed  |   |
+//     |   | (remote) |          |           | (local)  |   |
+//     |   +----------+          |           +----------+   |
+//     |        |                v                 |        |
+//     |        |  ES / R    +--------+  ES / R    |        |
+//     |        `----------->|        |<-----------'        |
+//     |  R                  | closed |                  R  |
+//     `-------------------->|        |<--------------------'
+//                           +--------+
+
+// Streams begin in the IDLE state and transitions happen when there's an incoming or outgoing frame
+Stream.prototype._initializeState = function _initializeState() {
+  this.state = 'IDLE';
+  this._initiated = undefined;
+  this._closedByUs = undefined;
+  this._closedWithRst = undefined;
+  this._processedHeaders = false;
+};
+
+// Only `_setState` should change `this.state` directly. It also logs the state change and notifies
+// interested parties using the 'state' event.
+Stream.prototype._setState = function transition(state) {
+  assert(this.state !== state);
+  this._log.debug({ from: this.state, to: state }, 'State transition');
+  this.state = state;
+  this.emit('state', state);
+};
+
+// A state is 'active' if the stream in that state counts towards the concurrency limit. Streams
+// that are in the "open" state, or either of the "half closed" states count toward this limit.
+function activeState(state) {
+  return ((state === 'HALF_CLOSED_LOCAL') || (state === 'HALF_CLOSED_REMOTE') || (state === 'OPEN'));
+}
+
+// `_transition` is called every time there's an incoming or outgoing frame. It manages state
+// transitions, and detects stream errors. A stream error is always caused by a frame that is not
+// allowed in the current state.
+Stream.prototype._transition = function transition(sending, frame) {
+  var receiving = !sending;
+  var connectionError;
+  var streamError;
+
+  var DATA = false, HEADERS = false, PRIORITY = false, ALTSVC = false, ORIGIN = false;
+  var RST_STREAM = false, PUSH_PROMISE = false, WINDOW_UPDATE = false;
+  switch(frame.type) {
+    case 'DATA'         : DATA          = true; break;
+    case 'HEADERS'      : HEADERS       = true; break;
+    case 'PRIORITY'     : PRIORITY      = true; break;
+    case 'RST_STREAM'   : RST_STREAM    = true; break;
+    case 'PUSH_PROMISE' : PUSH_PROMISE  = true; break;
+    case 'WINDOW_UPDATE': WINDOW_UPDATE = true; break;
+    case 'ALTSVC'       : ALTSVC        = true; break;
+    case 'ORIGIN'       : ORIGIN        = true; break;
+  }
+
+  var previousState = this.state;
+
+  switch (this.state) {
+    // All streams start in the **idle** state. In this state, no frames have been exchanged.
+    //
+    // * Sending or receiving a HEADERS frame causes the stream to become "open".
+    //
+    // When the HEADERS frame contains the END_STREAM flags, then two state transitions happen.
+    case 'IDLE':
+      if (HEADERS) {
+        this._setState('OPEN');
+        if (frame.flags.END_STREAM) {
+          this._setState(sending ? 'HALF_CLOSED_LOCAL' : 'HALF_CLOSED_REMOTE');
+        }
+        this._initiated = sending;
+      } else if (sending && RST_STREAM) {
+        this._setState('CLOSED');
+      } else if (PRIORITY) {
+        /* No state change */
+      } else {
+        connectionError = 'PROTOCOL_ERROR';
+      }
+      break;
+
+    // A stream in the **reserved (local)** state is one that has been promised by sending a
+    // PUSH_PROMISE frame.
+    //
+    // * The endpoint can send a HEADERS frame. This causes the stream to open in a "half closed
+    //   (remote)" state.
+    // * Either endpoint can send a RST_STREAM frame to cause the stream to become "closed". This
+    //   releases the stream reservation.
+    // * An endpoint may receive PRIORITY frame in this state.
+    // * An endpoint MUST NOT send any other type of frame in this state.
+    case 'RESERVED_LOCAL':
+      if (sending && HEADERS) {
+        this._setState('HALF_CLOSED_REMOTE');
+      } else if (RST_STREAM) {
+        this._setState('CLOSED');
+      } else if (PRIORITY) {
+        /* No state change */
+      } else {
+        connectionError = 'PROTOCOL_ERROR';
+      }
+      break;
+
+    // A stream in the **reserved (remote)** state has been reserved by a remote peer.
+    //
+    // * Either endpoint can send a RST_STREAM frame to cause the stream to become "closed". This
+    //   releases the stream reservation.
+    // * Receiving a HEADERS frame causes the stream to transition to "half closed (local)".
+    // * An endpoint MAY send PRIORITY frames in this state to reprioritize the stream.
+    // * Receiving any other type of frame MUST be treated as a stream error of type PROTOCOL_ERROR.
+    case 'RESERVED_REMOTE':
+      if (RST_STREAM) {
+        this._setState('CLOSED');
+      } else if (receiving && HEADERS) {
+        this._setState('HALF_CLOSED_LOCAL');
+      } else if (PRIORITY || ORIGIN) {
+        /* No state change */
+      } else {
+        connectionError = 'PROTOCOL_ERROR';
+      }
+      break;
+
+    // The **open** state is where both peers can send frames. In this state, sending peers observe
+    // advertised stream level flow control limits.
+    //
+    // * From this state either endpoint can send a frame with a END_STREAM flag set, which causes
+    //   the stream to transition into one of the "half closed" states: an endpoint sending a
+    //   END_STREAM flag causes the stream state to become "half closed (local)"; an endpoint
+    //   receiving a END_STREAM flag causes the stream state to become "half closed (remote)".
+    // * Either endpoint can send a RST_STREAM frame from this state, causing it to transition
+    //   immediately to "closed".
+    case 'OPEN':
+      if (frame.flags.END_STREAM) {
+        this._setState(sending ? 'HALF_CLOSED_LOCAL' : 'HALF_CLOSED_REMOTE');
+      } else if (RST_STREAM) {
+        this._setState('CLOSED');
+      } else {
+        /* No state change */
+      }
+      break;
+
+    // A stream that is **half closed (local)** cannot be used for sending frames.
+    //
+    // * A stream transitions from this state to "closed" when a frame that contains a END_STREAM
+    //   flag is received, or when either peer sends a RST_STREAM frame.
+    // * An endpoint MAY send or receive PRIORITY frames in this state to reprioritize the stream.
+    // * WINDOW_UPDATE can be sent by a peer that has sent a frame bearing the END_STREAM flag.
+    case 'HALF_CLOSED_LOCAL':
+      if (RST_STREAM || (receiving && frame.flags.END_STREAM)) {
+        this._setState('CLOSED');
+      } else if (ORIGIN || ALTSVC || receiving || PRIORITY || (sending && WINDOW_UPDATE)) {
+        /* No state change */
+      } else {
+        connectionError = 'PROTOCOL_ERROR';
+      }
+      break;
+
+    // A stream that is **half closed (remote)** is no longer being used by the peer to send frames.
+    // In this state, an endpoint is no longer obligated to maintain a receiver flow control window
+    // if it performs flow control.
+    //
+    // * If an endpoint receives additional frames for a stream that is in this state it MUST
+    //   respond with a stream error of type STREAM_CLOSED.
+    // * A stream can transition from this state to "closed" by sending a frame that contains a
+    //   END_STREAM flag, or when either peer sends a RST_STREAM frame.
+    // * An endpoint MAY send or receive PRIORITY frames in this state to reprioritize the stream.
+    // * A receiver MAY receive a WINDOW_UPDATE frame on a "half closed (remote)" stream.
+    case 'HALF_CLOSED_REMOTE':
+      if (RST_STREAM || (sending && frame.flags.END_STREAM)) {
+        this._setState('CLOSED');
+      } else if (ORIGIN || ALTSVC || sending || PRIORITY || (receiving && WINDOW_UPDATE)) {
+        /* No state change */
+      } else {
+        connectionError = 'PROTOCOL_ERROR';
+      }
+      break;
+
+    // The **closed** state is the terminal state.
+    //
+    // * An endpoint MUST NOT send frames on a closed stream. An endpoint that receives a frame
+    //   after receiving a RST_STREAM or a frame containing a END_STREAM flag on that stream MUST
+    //   treat that as a stream error of type STREAM_CLOSED.
+    // * WINDOW_UPDATE, PRIORITY or RST_STREAM frames can be received in this state for a short
+    //   period after a frame containing an END_STREAM flag is sent.  Until the remote peer receives
+    //   and processes the frame bearing the END_STREAM flag, it might send either frame type.
+    //   Endpoints MUST ignore WINDOW_UPDATE frames received in this state, though endpoints MAY
+    //   choose to treat WINDOW_UPDATE frames that arrive a significant time after sending
+    //   END_STREAM as a connection error of type PROTOCOL_ERROR.
+    // * If this state is reached as a result of sending a RST_STREAM frame, the peer that receives
+    //   the RST_STREAM might have already sent - or enqueued for sending - frames on the stream
+    //   that cannot be withdrawn. An endpoint that sends a RST_STREAM frame MUST ignore frames that
+    //   it receives on closed streams after it has sent a RST_STREAM frame. An endpoint MAY choose
+    //   to limit the period over which it ignores frames and treat frames that arrive after this
+    //   time as being in error.
+    // * An endpoint might receive a PUSH_PROMISE frame after it sends RST_STREAM. PUSH_PROMISE
+    //   causes a stream to become "reserved". If promised streams are not desired, a RST_STREAM
+    //   can be used to close any of those streams.
+    case 'CLOSED':
+      if (PRIORITY || (sending && RST_STREAM) ||
+          (receiving && WINDOW_UPDATE) ||
+          (receiving && this._closedByUs &&
+           (this._closedWithRst || RST_STREAM || ALTSVC || ORIGIN))) {
+        /* No state change */
+      } else {
+        streamError = 'STREAM_CLOSED';
+      }
+      break;
+  }
+
+  // Noting that the connection was closed by the other endpoint. It may be important in edge cases.
+  // For example, when the peer tries to cancel a promised stream, but we already sent every data
+  // on it, then the stream is in CLOSED state, yet we want to ignore the incoming RST_STREAM.
+  if ((this.state === 'CLOSED') && (previousState !== 'CLOSED')) {
+    this._closedByUs = sending;
+    this._closedWithRst = RST_STREAM;
+  }
+
+  // Sending/receiving a PUSH_PROMISE
+  //
+  // * Sending a PUSH_PROMISE frame marks the associated stream for later use. The stream state
+  //   for the reserved stream transitions to "reserved (local)".
+  // * Receiving a PUSH_PROMISE frame marks the associated stream as reserved by the remote peer.
+  //   The state of the stream becomes "reserved (remote)".
+  if (PUSH_PROMISE && !connectionError && !streamError) {
+    /* This assertion must hold, because _transition is called immediately when a frame is written
+       to the stream. If it would be called when a frame gets out of the input queue, the state
+       of the reserved could have been changed by then. */
+    assert(frame.promised_stream.state === 'IDLE', frame.promised_stream.state);
+    frame.promised_stream._setState(sending ? 'RESERVED_LOCAL' : 'RESERVED_REMOTE');
+    frame.promised_stream._initiated = sending;
+  }
+
+  // Signaling how sending/receiving this frame changes the active stream count (-1, 0 or +1)
+  if (this._initiated) {
+    var change = (activeState(this.state) - activeState(previousState));
+    if (sending) {
+      frame.count_change = change;
+    } else {
+      frame.count_change(change);
+    }
+  } else if (sending) {
+    frame.count_change = 0;
+  }
+
+  // Common error handling.
+  if (connectionError || streamError) {
+    var info = {
+      error: connectionError,
+      frame: frame,
+      state: this.state,
+      closedByUs: this._closedByUs,
+      closedWithRst: this._closedWithRst
+    };
+
+    // * When sending something invalid, throwing an exception, since it is probably a bug.
+    if (sending) {
+      this._log.error(info, 'Sending illegal frame.');
+      return this.emit('error', new Error('Sending illegal frame (' + frame.type + ') in ' + this.state + ' state.'));
+    }
+
+    // * In case of a serious problem, emitting and error and letting someone else handle it
+    //   (e.g. closing the connection)
+    // * When receiving something invalid, sending an RST_STREAM using the `reset` method.
+    //   This will automatically cause a transition to the CLOSED state.
+    else {
+      this._log.error(info, 'Received illegal frame.');
+      if (connectionError) {
+        this.emit('connectionError', connectionError);
+      } else {
+        this.reset(streamError);
+        this.emit('error', streamError);
+      }
+    }
+  }
+};
+
+// Bunyan serializers
+// ------------------
+
+exports.serializers = {};
+
+var nextId = 0;
+exports.serializers.s = function(stream) {
+  if (!('_id' in stream)) {
+    stream._id = nextId;
+    nextId += 1;
+  }
+  return stream._id;
+};