Adding upstream version 124.0.1.upstream/124.0.1

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

20 files changed, 863 insertions, 0 deletions

diff --git a/testing/web-platform/tests/beacon/META.yml b/testing/web-platform/tests/beacon/META.yml
new file mode 100644
index 0000000000..4bd94e3206
--- /dev/null
+++ b/testing/web-platform/tests/beacon/META.yml
@@ -0,0 +1,3 @@
+spec: https://w3c.github.io/beacon/
+suggested_reviewers:
+  - igrigorik
diff --git a/testing/web-platform/tests/beacon/beacon-basic.https.window.js b/testing/web-platform/tests/beacon/beacon-basic.https.window.js
new file mode 100644
index 0000000000..47117716a2
--- /dev/null
+++ b/testing/web-platform/tests/beacon/beacon-basic.https.window.js
@@ -0,0 +1,98 @@
+// META: timeout=long
+// META: script=/common/utils.js
+// META: script=beacon-common.sub.js
+
+'use strict';
+
+// TODO(yhirano): Check the sec-fetch-mode request header once WebKit supports
+// the feature.
+
+parallelPromiseTest(async (t) => {
+  const iframe = document.createElement('iframe');
+  document.body.appendChild(iframe);
+  t.add_cleanup(() => iframe.remove());
+
+  const id = token();
+  const url = `/beacon/resources/beacon.py?cmd=store&id=${id}`;
+  assert_true(iframe.contentWindow.navigator.sendBeacon(url));
+  iframe.remove();
+
+  const result = await waitForResult(id);
+  assert_equals(result.type, '(missing)', 'content-type');
+}, `simple case: with no payload`);
+
+parallelPromiseTest(async (t) => {
+  const iframe = document.createElement('iframe');
+  document.body.appendChild(iframe);
+  t.add_cleanup(() => iframe.remove());
+
+  const id = token();
+  const url = `/beacon/resources/beacon.py?cmd=store&id=${id}`;
+  assert_true(iframe.contentWindow.navigator.sendBeacon(url, null));
+  iframe.remove();
+
+  const result = await waitForResult(id);
+  assert_equals(result.type, '(missing)', 'content-type');
+}, `simple case: with null payload`);
+
+for (const size of [EMPTY, SMALL, LARGE, MAX]) {
+  for (const type of [STRING, ARRAYBUFFER, FORM, BLOB]) {
+    if (size === MAX && type === FORM) {
+      // It is difficult to estimate the size of a form accurately, so we cannot
+      // test this case.
+      continue;
+    }
+    parallelPromiseTest(async (t) => {
+      const iframe = document.createElement('iframe');
+      document.body.appendChild(iframe);
+      t.add_cleanup(() => iframe.remove());
+
+      const payload = makePayload(size, type);
+      const id = token();
+      const url = `/beacon/resources/beacon.py?cmd=store&id=${id}`;
+      assert_true(iframe.contentWindow.navigator.sendBeacon(url, payload));
+      iframe.remove();
+
+      const result = await waitForResult(id);
+      if (getContentType(type) === null) {
+        assert_equals(result.type, '(missing)', 'content-type');
+      } else {
+        assert_true(result.type.includes(getContentType(type)), 'content-type');
+      }
+    }, `simple case: type = ${type} and size = ${size}`);
+  }
+}
+
+for (const type of [STRING, ARRAYBUFFER, FORM, BLOB]) {
+  parallelPromiseTest(async (t) => {
+    const iframe = document.createElement('iframe');
+    document.body.appendChild(iframe);
+    t.add_cleanup(() => iframe.remove());
+
+    const payload = makePayload(TOOLARGE, type);
+    const id = token();
+    const url = `/beacon/resources/beacon.py?cmd=store&id=${id}`;
+    assert_false(iframe.contentWindow.navigator.sendBeacon(url, payload));
+  }, `Too large payload should be rejected: type = ${type}`);
+}
+
+for (const type of [STRING, ARRAYBUFFER, BLOB]) {
+  parallelPromiseTest(async (t) => {
+    const iframe = document.createElement('iframe');
+    document.body.appendChild(iframe);
+    t.add_cleanup(() => iframe.remove());
+
+    assert_true(iframe.contentWindow.navigator.sendBeacon(
+        `/beacon/resources/beacon.py?cmd=store&id=${token()}`,
+        makePayload(MAX, type)));
+    assert_true(iframe.contentWindow.navigator.sendBeacon(
+        `/beacon/resources/beacon.py?cmd=store&id=${token()}`, ''));
+    assert_false(iframe.contentWindow.navigator.sendBeacon(
+        `/beacon/resources/beacon.py?cmd=store&id=${token()}`, 'x'));
+  }, `Payload size restriction should be accumulated: type = ${type}`);
+}
+
+test(() => {
+  assert_throws_js(
+      TypeError, () => navigator.sendBeacon('...', new ReadableStream()));
+}, 'sendBeacon() with a stream does not work due to the keepalive flag being set');
diff --git a/testing/web-platform/tests/beacon/beacon-common.sub.js b/testing/web-platform/tests/beacon/beacon-common.sub.js
new file mode 100644
index 0000000000..4699495460
--- /dev/null
+++ b/testing/web-platform/tests/beacon/beacon-common.sub.js
@@ -0,0 +1,111 @@
+'use strict';
+
+const EMPTY = 'empty';
+const SMALL = 'small';
+const LARGE = 'large';
+const MAX = 'max';
+const TOOLARGE = 'toolarge';
+
+const STRING = 'string';
+const ARRAYBUFFER = 'arraybuffer';
+const FORM = 'form';
+const BLOB = 'blob';
+
+function getContentType(type) {
+  switch (type) {
+    case STRING:
+      return 'text/plain;charset=UTF-8';
+    case ARRAYBUFFER:
+      return null;
+    case FORM:
+      return 'multipart/form-data';
+    case BLOB:
+      return null;
+    default:
+      throw Error(`invalid type: ${type}`);
+  }
+}
+
+// Create a payload with the given size and type.
+// `sizeString` must be one of EMPTY, SMALL, LARGE, MAX, TOOLARGE.
+// `type` must be one of STRING, ARRAYBUFFER, FORM, BLOB.
+// `contentType` is effective only if `type` is BLOB.
+function makePayload(sizeString, type, contentType) {
+  let size = 0;
+  switch (sizeString) {
+    case EMPTY:
+      size = 0;
+      break;
+    case SMALL:
+      size = 10;
+      break;
+    case LARGE:
+      size = 10 * 1000;
+      break;
+    case MAX:
+      if (type === FORM) {
+        throw Error('Not supported');
+      }
+      size = 65536;
+      break;
+    case TOOLARGE:
+      size = 65537;
+      break;
+    default:
+      throw Error('invalid size');
+  }
+
+  let data = '';
+  if (size > 0) {
+    const prefix = String(size) + ':';
+    data = prefix + Array(size - prefix.length).fill('*').join('');
+  }
+
+  switch (type) {
+    case STRING:
+      return data;
+    case ARRAYBUFFER:
+      return new TextEncoder().encode(data).buffer;
+    case FORM:
+      const formData = new FormData();
+      if (size > 0) {
+        formData.append('payload', data);
+      }
+      return formData;
+    case BLOB:
+      const options = contentType ? {type: contentType} : undefined;
+      const blob = new Blob([data], options);
+      return blob;
+    default:
+      throw Error('invalid type');
+  }
+}
+
+function parallelPromiseTest(func, description) {
+  async_test((t) => {
+    Promise.resolve(func(t)).then(() => t.done()).catch(t.step_func((e) => {
+      throw e;
+    }));
+  }, description);
+}
+
+// Poll the server for the test result.
+async function waitForResult(id, expectedError = null) {
+  const url = `/beacon/resources/beacon.py?cmd=stat&id=${id}`;
+  for (let i = 0; i < 30; ++i) {
+    const response = await fetch(url);
+    const text = await response.text();
+    const results = JSON.parse(text);
+
+    if (results.length === 0) {
+      await new Promise(resolve => step_timeout(resolve, 100));
+      continue;
+    }
+    assert_equals(results.length, 1, `bad response: '${text}'`);
+    const result = results[0];
+    // null JSON values parse as null, not undefined
+    assert_equals(result.error, expectedError, 'error recorded in stash');
+    return result;
+  }
+  assert_true(false, 'timeout');
+}
diff --git a/testing/web-platform/tests/beacon/beacon-cors.https.window.js b/testing/web-platform/tests/beacon/beacon-cors.https.window.js
new file mode 100644
index 0000000000..6f282a23b1
--- /dev/null
+++ b/testing/web-platform/tests/beacon/beacon-cors.https.window.js
@@ -0,0 +1,132 @@
+// META: timeout=long
+// META: script=/common/get-host-info.sub.js
+// META: script=/common/utils.js
+// META: script=beacon-common.sub.js
+
+'use strict';
+
+const {HTTPS_ORIGIN, ORIGIN, HTTPS_REMOTE_ORIGIN} = get_host_info();
+
+// As /common/redirect.py is not under our control, let's make sure that
+// it doesn't support CORS.
+parallelPromiseTest(async (t) => {
+  const destination = `${HTTPS_REMOTE_ORIGIN}/common/text-plain.txt` +
+      `?pipe=header(access-control-allow-origin,*)`;
+  const redirect = `${HTTPS_REMOTE_ORIGIN}/common/redirect.py` +
+      `?location=${encodeURIComponent(destination)}`;
+
+  // Fetching `destination` is fine because it supports CORS.
+  await fetch(destination);
+
+  // Fetching redirect.py should fail because it doesn't support CORS.
+  await promise_rejects_js(t, TypeError, fetch(redirect));
+}, '/common/redirect.py does not support CORS');
+
+for (const type of [STRING, ARRAYBUFFER, FORM, BLOB]) {
+  parallelPromiseTest(async (t) => {
+    const iframe = document.createElement('iframe');
+    document.body.appendChild(iframe);
+    t.add_cleanup(() => iframe.remove());
+
+    const payload = makePayload(SMALL, type);
+    const id = token();
+    // As we use "no-cors" for CORS-safelisted requests, the redirect is
+    // processed without an error while the request is cross-origin and the
+    // redirect handler doesn't support CORS.
+    const destination =
+        `${HTTPS_REMOTE_ORIGIN}/beacon/resources/beacon.py?cmd=store&id=${id}`;
+    const url = `${HTTPS_REMOTE_ORIGIN}/common/redirect.py` +
+        `?status=307&location=${encodeURIComponent(destination)}`;
+
+    assert_true(iframe.contentWindow.navigator.sendBeacon(url, payload));
+    iframe.remove();
+
+    await waitForResult(id);
+  }, `cross-origin, CORS-safelisted: type = ${type}`);
+}
+
+parallelPromiseTest(async (t) => {
+  const iframe = document.createElement('iframe');
+  document.body.appendChild(iframe);
+  t.add_cleanup(() => iframe.remove());
+
+  const payload = makePayload(SMALL, BLOB, 'application/octet-stream');
+  const id = token();
+  const destination =
+      `${HTTPS_REMOTE_ORIGIN}/beacon/resources/beacon.py?cmd=store&id=${id}`;
+  const url = `${HTTPS_REMOTE_ORIGIN}/common/redirect.py` +
+      `?status=307&location=${encodeURIComponent(destination)}`;
+  assert_true(iframe.contentWindow.navigator.sendBeacon(url, payload));
+  iframe.remove();
+
+  // The beacon is rejected during redirect handling because /common/redirect.py
+  // doesn't support CORS.
+
+  await new Promise((resolve) => step_timeout(resolve, 3000));
+  const res = await fetch(`/beacon/resources/beacon.py?cmd=stat&id=${id}`);
+  assert_equals((await res.json()).length, 0);
+}, `cross-origin, non-CORS-safelisted: failure case (with redirect)`);
+
+parallelPromiseTest(async (t) => {
+  const iframe = document.createElement('iframe');
+  document.body.appendChild(iframe);
+  t.add_cleanup(() => iframe.remove());
+
+  const payload = makePayload(SMALL, BLOB, 'application/octet-stream');
+  const id = token();
+  const url =
+      `${HTTPS_REMOTE_ORIGIN}/beacon/resources/beacon.py?cmd=store&id=${id}`;
+  assert_true(iframe.contentWindow.navigator.sendBeacon(url, payload));
+  iframe.remove();
+
+  // The beacon is rejected during preflight handling.
+  await waitForResult(id, /*expectedError=*/ 'Preflight not expected.');
+}, `cross-origin, non-CORS-safelisted: failure case (without redirect)`);
+
+for (const credentials of [false, true]) {
+  parallelPromiseTest(async (t) => {
+    const iframe = document.createElement('iframe');
+    document.body.appendChild(iframe);
+    t.add_cleanup(() => iframe.remove());
+
+    const payload = makePayload(SMALL, BLOB, 'application/octet-stream');
+    const id = token();
+    let url = `${HTTPS_REMOTE_ORIGIN}/beacon/resources/beacon.py` +
+        `?cmd=store&id=${id}&preflightExpected&origin=${ORIGIN}`;
+    if (credentials) {
+      url += `&credentials=true`;
+    }
+    assert_true(iframe.contentWindow.navigator.sendBeacon(url, payload));
+    iframe.remove();
+
+    // We need access-control-allow-credentials in the preflight response. This
+    // shows that the request's credentials mode is 'include'.
+    if (credentials) {
+      const result = await waitForResult(id);
+      assert_equals(result.type, 'application/octet-stream');
+    } else {
+      await new Promise((resolve) => step_timeout(resolve, 3000));
+      const res = await fetch(`/beacon/resources/beacon.py?cmd=stat&id=${id}`);
+      assert_equals((await res.json()).length, 0);
+    }
+  }, `cross-origin, non-CORS-safelisted[credentials=${credentials}]`);
+}
+
+parallelPromiseTest(async (t) => {
+  const iframe = document.createElement('iframe');
+  document.body.appendChild(iframe);
+  t.add_cleanup(() => iframe.remove());
+
+  const payload = makePayload(SMALL, BLOB, 'application/octet-stream');
+  const id = token();
+  const destination = `${HTTPS_REMOTE_ORIGIN}/beacon/resources/beacon.py` +
+      `?cmd=store&id=${id}&preflightExpected&origin=${ORIGIN}&credentials=true`;
+  const url = `${HTTPS_REMOTE_ORIGIN}/fetch/api/resources/redirect.py` +
+      `?redirect_status=307&allow_headers=content-type` +
+      `&location=${encodeURIComponent(destination)}`;
+  assert_true(iframe.contentWindow.navigator.sendBeacon(url, payload));
+  iframe.remove();
+
+  const result = await waitForResult(id);
+  assert_equals(result.type, 'application/octet-stream');
+}, `cross-origin, non-CORS-safelisted success-case (with redirect)`);
diff --git a/testing/web-platform/tests/beacon/beacon-navigate.https.window.js b/testing/web-platform/tests/beacon/beacon-navigate.https.window.js
new file mode 100644
index 0000000000..8b42a47cd9
--- /dev/null
+++ b/testing/web-platform/tests/beacon/beacon-navigate.https.window.js
@@ -0,0 +1,23 @@
+// META: timeout=long
+// META: script=/common/utils.js
+// META: script=/common/get-host-info.sub.js
+// META: script=beacon-common.sub.js
+
+'use strict';
+
+const {HTTP_REMOTE_ORIGIN} = get_host_info();
+
+for (const type of [STRING, ARRAYBUFFER, FORM, BLOB]) {
+  parallelPromiseTest(async (t) => {
+    const iframe = document.createElement('iframe');
+    document.body.appendChild(iframe);
+    t.add_cleanup(() => iframe.remove());
+
+    const payload = makePayload(SMALL, type);
+    const id = token();
+    const url = `/beacon/resources/beacon.py?cmd=store&id=${id}`;
+    assert_true(iframe.contentWindow.navigator.sendBeacon(url, payload));
+
+    iframe.src = `${HTTP_REMOTE_ORIGIN}/common/blank.html`;
+  }, `The frame navigates away after calling sendBeacon[type = ${type}].`);
+}
diff --git a/testing/web-platform/tests/beacon/beacon-redirect.https.window.js b/testing/web-platform/tests/beacon/beacon-redirect.https.window.js
new file mode 100644
index 0000000000..16a2545527
--- /dev/null
+++ b/testing/web-platform/tests/beacon/beacon-redirect.https.window.js
@@ -0,0 +1,35 @@
+// META: timeout=long
+// META: script=/common/get-host-info.sub.js
+// META: script=/common/utils.js
+// META: script=beacon-common.sub.js
+
+'use strict';
+
+const {ORIGIN} = get_host_info();
+
+// Execute each sample test per redirect status code.
+// Note that status codes 307 and 308 are the only codes that will maintain POST
+// data through a redirect.
+for (const status of [307, 308]) {
+  for (const type of [STRING, ARRAYBUFFER, FORM, BLOB]) {
+    parallelPromiseTest(async (t) => {
+      const iframe = document.createElement('iframe');
+      document.body.appendChild(iframe);
+      t.add_cleanup(() => iframe.remove());
+
+      const payload = makePayload(SMALL, type);
+      const id = token();
+      const destination =
+          `${ORIGIN}/beacon/resources/beacon.py?cmd=store&id=${id}`;
+      const url = `${ORIGIN}/common/redirect.py` +
+          `?status=${status}&location=${encodeURIComponent(destination)}`;
+
+      assert_true(iframe.contentWindow.navigator.sendBeacon(url, payload));
+      iframe.remove();
+
+      await waitForResult(id);
+    }, `cross-origin, CORS-safelisted: status = ${status}, type = ${type}`);
+  }
+};
+
+done();
diff --git a/testing/web-platform/tests/beacon/headers/header-content-type-and-body.html b/testing/web-platform/tests/beacon/headers/header-content-type-and-body.html
new file mode 100644
index 0000000000..0369cffdf4
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-content-type-and-body.html
@@ -0,0 +1,89 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Content-Type header</title>
+    <script src=/resources/testharness.js></script>
+    <script src=/resources/testharnessreport.js></script>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script>
+const RESOURCES_DIR = "/beacon/resources/";
+
+function testContentTypeAndBody(what, expected, title) {
+  function wait(ms) {
+    return new Promise(resolve => step_timeout(resolve, ms));
+  }
+  promise_test(async t => {
+    const id = self.token();
+    const testUrl = new Request(RESOURCES_DIR + "content-type-and-body.py?cmd=put&id=" + id).url;
+    assert_equals(performance.getEntriesByName(testUrl).length, 0);
+    assert_true(navigator.sendBeacon(testUrl, what), "SendBeacon Succeeded");
+
+    do {
+      await wait(50);
+    } while (performance.getEntriesByName(testUrl).length === 0);
+    assert_equals(performance.getEntriesByName(testUrl).length, 1);
+    const checkUrl = RESOURCES_DIR + "content-type-and-body.py?cmd=get&id=" + id;
+    const response = await fetch(checkUrl);
+    const text = await response.text();
+    if (expected.startsWith("multipart/form-data")) {
+      const split = expected.split(":");
+      const contentType = split[0];
+      const contentDisposition = "Content-Disposition: form-data; name=\"" + split[1] + "\"; filename=\"blob\"";
+      assert_true(text.startsWith(contentType), "Correct Content-Type header result");
+      assert_true(text.includes(contentDisposition), "Body included value");
+    } else {
+      assert_equals(text, expected, "Correct Content-Type header result");
+    }
+  }, "Test content-type header for a body " + title);
+}
+
+function stringToArrayBufferView(input) {
+  var buffer = new ArrayBuffer(input.length * 2);
+  var view = new Uint16Array(buffer);
+
+  // dumbly copy over the bytes
+  for (var i = 0, len = input.length; i < len; i++) {
+    view[i] = input.charCodeAt(i);
+  }
+  return view;
+}
+
+function stringToArrayBuffer(input) {
+  var buffer = new ArrayBuffer(input.length * 2);
+  var view = new Uint16Array(buffer);
+
+  // dumbly copy over the bytes
+  for (var i = 0, len = input.length; i < len; i++) {
+    view[i] = input.charCodeAt(i);
+  }
+  return buffer;
+}
+
+function stringToBlob(input) {
+  return new Blob([input], {type: "text/plain"});
+}
+
+function stringToFormData(input) {
+  var formdata = new FormData();
+  formdata.append(input, new Blob(['hi']));
+  return formdata;
+}
+
+function stringToURLSearchParams(input)
+{
+  return new URLSearchParams(input);
+}
+
+testContentTypeAndBody("hi!", "text/plain;charset=UTF-8: hi!", "string");
+testContentTypeAndBody(stringToArrayBufferView("123"), ": 1\0" + "2\0" + "3\0", "ArrayBufferView");
+testContentTypeAndBody(stringToArrayBuffer("123"), ": 1\0" + "2\0" + "3\0", "ArrayBuffer");
+testContentTypeAndBody(stringToBlob("123"), "text/plain: 123", "Blob");
+testContentTypeAndBody(stringToFormData("qwerty"), "multipart/form-data:qwerty", "FormData");
+testContentTypeAndBody(stringToURLSearchParams("key1=value1&key2=value2"), "application/x-www-form-urlencoded;charset=UTF-8: key1=value1&key2=value2", "URLSearchParams");
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer-no-referrer-when-downgrade.https.html b/testing/web-platform/tests/beacon/headers/header-referrer-no-referrer-when-downgrade.https.html
new file mode 100644
index 0000000000..d09d4ea560
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer-no-referrer-when-downgrade.https.html
@@ -0,0 +1,21 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Referrer Header No Referrer When Downgrade Policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <meta name='referrer' content='no-referrer-when-downgrade'>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="/beacon/headers/header-referrer.js"></script>
+    <script>
+      var testBase = get_host_info().HTTPS_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerUrl);
+      testBase = get_host_info().HTTP_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, "", true);
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer-no-referrer.html b/testing/web-platform/tests/beacon/headers/header-referrer-no-referrer.html
new file mode 100644
index 0000000000..b26db4c2d5
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer-no-referrer.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Referrer Header No Referrer Policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <meta name='referrer' content='no-referrer'>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="header-referrer.js"></script>
+    <script>
+      var testBase = RESOURCES_DIR;
+      testReferrerHeader(testBase, "");
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer-origin-when-cross-origin.html b/testing/web-platform/tests/beacon/headers/header-referrer-origin-when-cross-origin.html
new file mode 100644
index 0000000000..a23c0210c5
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer-origin-when-cross-origin.html
@@ -0,0 +1,21 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Referrer Header Origin When Cross Origin Policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <meta name='referrer' content='origin-when-cross-origin'>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="header-referrer.js"></script>
+    <script>
+      var testBase = get_host_info().HTTP_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerUrl);
+      testBase = get_host_info().HTTP_REMOTE_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerOrigin);
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer-origin.html b/testing/web-platform/tests/beacon/headers/header-referrer-origin.html
new file mode 100644
index 0000000000..c7a571e3a1
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer-origin.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Referrer Header Origin Policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <meta name='referrer' content='origin'>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="header-referrer.js"></script>
+    <script>
+      var testBase = get_host_info().HTTP_REMOTE_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerOrigin);
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer-same-origin.html b/testing/web-platform/tests/beacon/headers/header-referrer-same-origin.html
new file mode 100644
index 0000000000..80455ab59e
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer-same-origin.html
@@ -0,0 +1,21 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Referrer Header Same Origin Policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <meta name='referrer' content='same-origin'>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="header-referrer.js"></script>
+    <script>
+      var testBase = RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerUrl);
+      testBase = get_host_info().HTTP_REMOTE_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, "");
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer-strict-origin-when-cross-origin.https.html b/testing/web-platform/tests/beacon/headers/header-referrer-strict-origin-when-cross-origin.https.html
new file mode 100644
index 0000000000..f310035009
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer-strict-origin-when-cross-origin.https.html
@@ -0,0 +1,21 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Referrer Header Strict Origin Policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <meta name='referrer' content='strict-origin'>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="/beacon/headers/header-referrer.js"></script>
+    <script>
+      var testBase = get_host_info().HTTPS_REMOTE_ORIGIN +  RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerOrigin);
+      testBase = get_host_info().HTTP_REMOTE_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, "", true);
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer-strict-origin.https.html b/testing/web-platform/tests/beacon/headers/header-referrer-strict-origin.https.html
new file mode 100644
index 0000000000..b65bc795d2
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer-strict-origin.https.html
@@ -0,0 +1,21 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Referrer Header Strict Origin Policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <meta name='referrer' content='strict-origin'>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="/beacon/headers/header-referrer.js"></script>
+    <script>
+      var testBase = get_host_info().HTTPS_ORIGIN +  RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerOrigin);
+      testBase = get_host_info().HTTP_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, "", true);
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer-unsafe-url.https.html b/testing/web-platform/tests/beacon/headers/header-referrer-unsafe-url.https.html
new file mode 100644
index 0000000000..26a062ebd8
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer-unsafe-url.https.html
@@ -0,0 +1,21 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>SendBeacon Referrer Header Unsafe Url Policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <meta name='referrer' content='unsafe-url'>
+  </head>
+  <body>
+    <script src="/common/utils.js"></script>
+    <script src="/common/get-host-info.sub.js"></script>
+    <script src="/beacon/headers/header-referrer.js"></script>
+    <script>
+      var testBase = get_host_info().HTTPS_ORIGIN +  RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerUrl);
+      testBase = get_host_info().HTTP_ORIGIN + RESOURCES_DIR;
+      testReferrerHeader(testBase, referrerUrl, true);
+    </script>
+  </body>
+</html>
diff --git a/testing/web-platform/tests/beacon/headers/header-referrer.js b/testing/web-platform/tests/beacon/headers/header-referrer.js
new file mode 100644
index 0000000000..ebd67df1d7
--- /dev/null
+++ b/testing/web-platform/tests/beacon/headers/header-referrer.js
@@ -0,0 +1,44 @@
+var RESOURCES_DIR = "/beacon/resources/";
+
+var referrerOrigin = self.location.origin + '/';
+var referrerUrl = self.location.href;
+
+function testReferrerHeader(testBase, expectedReferrer, mayBeBlockedAsMixedContent = false) {
+  var id = self.token();
+  var testUrl = testBase + "inspect-header.py?header=referer&cmd=put&id=" + id;
+
+  promise_test(function(test) {
+    const sentBeacon = navigator.sendBeacon(testUrl);
+    if (mayBeBlockedAsMixedContent && !sentBeacon)
+      return Promise.resolve();
+    assert_true(sentBeacon, "SendBeacon Succeeded");
+    return pollResult(expectedReferrer, id) .then(result => {
+      assert_equals(result, expectedReferrer, "Correct referrer header result");
+    });
+  }, "Test referer header " + testBase);
+}
+
+// SendBeacon is an asynchronous and non-blocking request to a web server.
+// We may have to create a poll loop to get result from server
+function pollResult(expectedReferrer, id) {
+  var checkUrl = RESOURCES_DIR + "inspect-header.py?header=referer&cmd=get&id=" + id;
+
+  return new Promise(resolve => {
+    function checkResult() {
+      fetch(checkUrl).then(
+        function(response) {
+          assert_equals(response.status, 200, "Inspect header response's status is 200");
+          let result = response.headers.get("x-request-referer");
+
+          if (result != undefined) {
+            resolve(result);
+          } else {
+            step_timeout(checkResult.bind(this), 100);
+          }
+        });
+    }
+
+    checkResult();
+  });
+
+}
diff --git a/testing/web-platform/tests/beacon/idlharness.any.js b/testing/web-platform/tests/beacon/idlharness.any.js
new file mode 100644
index 0000000000..bf267ab8bd
--- /dev/null
+++ b/testing/web-platform/tests/beacon/idlharness.any.js
@@ -0,0 +1,14 @@
+// META: script=/resources/WebIDLParser.js
+// META: script=/resources/idlharness.js
+
+// https://w3c.github.io/beacon/
+
+idl_test(
+  ['beacon'],
+  ['html'],
+  idl_array => {
+    idl_array.add_objects({
+      Navigator: ['navigator'],
+    });
+  }
+);
diff --git a/testing/web-platform/tests/beacon/resources/beacon.py b/testing/web-platform/tests/beacon/resources/beacon.py
new file mode 100644
index 0000000000..d81bfb1ac6
--- /dev/null
+++ b/testing/web-platform/tests/beacon/resources/beacon.py
@@ -0,0 +1,118 @@
+import json
+
+from wptserve.utils import isomorphic_decode
+
+def main(request, response):
+    """Helper handler for Beacon tests.
+
+    It handles two forms of requests:
+
+    STORE:
+        A URL with a query string of the form 'cmd=store&id=<token>'.
+
+        Stores the receipt of a sendBeacon() request along with its validation
+        result, returning HTTP 200 OK.
+
+        if "preflightExpected"  exists in the query, this handler responds to
+        CORS preflights.
+
+    STAT:
+        A URL with a query string of the form 'cmd=stat&id=<token>'.
+
+        Retrieves the results of test for the given id and returns them as a
+        JSON array and HTTP 200 OK status code. Due to the eventual read-once
+        nature of the stash, results for a given test are only guaranteed to be
+        returned once, though they may be returned multiple times.
+
+        An entry may contain following members.
+            - error: An error string. null if there is no error.
+            - type: The content-type header of the request "(missing)" if there
+                    is no content-type header in the request.
+
+        Example response bodies:
+            - [{error: null, type: "text/plain;charset=UTF8"}]
+            - [{error: "some validation details"}]
+            - []
+
+    Common parameters:
+        cmd - the command, 'store' or 'stat'.
+        id - the unique identifier of the test.
+    """
+
+    id = request.GET.first(b"id")
+    command = request.GET.first(b"cmd").lower()
+
+    # Append CORS headers if needed.
+    if b"origin" in request.GET:
+        response.headers.set(b"Access-Control-Allow-Origin",
+                             request.GET.first(b"origin"))
+    if b"credentials" in request.GET:
+        response.headers.set(b"Access-Control-Allow-Credentials",
+                             request.GET.first(b"credentials"))
+
+    # Handle the 'store' and 'stat' commands.
+    if command == b"store":
+        error = None
+
+        # Only store the actual POST requests, not any preflight/OPTIONS
+        # requests we may get.
+        if request.method == u"POST":
+            payload = b""
+            contentType = request.headers[b"Content-Type"] \
+                if b"Content-Type" in request.headers else b"(missing)"
+            if b"form-data" in contentType:
+                if b"payload" in request.POST:
+                    # The payload was sent as a FormData.
+                    payload = request.POST.first(b"payload")
+                else:
+                    # A FormData was sent with an empty payload.
+                    pass
+            else:
+                # The payload was sent as either a string, Blob, or BufferSource.
+                payload = request.body
+
+            payload_parts = list(filter(None, payload.split(b":")))
+            if len(payload_parts) > 0:
+                payload_size = int(payload_parts[0])
+
+                # Confirm the payload size sent matches with the number of
+                # characters sent.
+                if payload_size != len(payload):
+                    error = u"expected %d characters but got %d" % (
+                        payload_size, len(payload))
+                else:
+                    # Confirm the payload contains the correct characters.
+                    for i in range(len(payload)):
+                        if i <= len(payload_parts[0]):
+                            continue
+                        c = payload[i:i+1]
+                        if c != b"*":
+                            error = u"expected '*' at index %d but got '%s''" % (
+                                i, isomorphic_decode(c))
+                            break
+
+            # Store the result in the stash so that it can be retrieved
+            # later with a 'stat' command.
+            request.server.stash.put(id, {
+                u"error": error,
+                u"type": isomorphic_decode(contentType)
+            })
+        elif request.method == u"OPTIONS":
+            # If we expect a preflight, then add the cors headers we expect,
+            # otherwise log an error as we shouldn't send a preflight for all
+            # requests.
+            if b"preflightExpected" in request.GET:
+                response.headers.set(b"Access-Control-Allow-Headers",
+                                     b"content-type")
+                response.headers.set(b"Access-Control-Allow-Methods", b"POST")
+            else:
+                error = u"Preflight not expected."
+                request.server.stash.put(id, {u"error": error})
+    elif command == b"stat":
+        test_data = request.server.stash.take(id)
+        results = [test_data] if test_data else []
+
+        response.headers.set(b"Content-Type", b"text/plain")
+        response.content = json.dumps(results)
+    else:
+        response.status = 400  # BadRequest
diff --git a/testing/web-platform/tests/beacon/resources/content-type-and-body.py b/testing/web-platform/tests/beacon/resources/content-type-and-body.py
new file mode 100644
index 0000000000..9b1e880c2f
--- /dev/null
+++ b/testing/web-platform/tests/beacon/resources/content-type-and-body.py
@@ -0,0 +1,14 @@
+def main(request, response):
+    command = request.GET.first(b"cmd").lower()
+    test_id = request.GET.first(b"id")
+    if command == b"put":
+        request.server.stash.put(test_id, request.headers.get(b"Content-Type", b"") + b": " + request.body)
+        return [(b"Content-Type", b"text/plain")], u""
+
+    if command == b"get":
+        stashed_header = request.server.stash.take(test_id)
+        if stashed_header is not None:
+            return [(b"Content-Type", b"text/plain")], stashed_header
+
+    response.set_error(400, u"Bad Command")
+    return u"ERROR: Bad Command!"
diff --git a/testing/web-platform/tests/beacon/resources/inspect-header.py b/testing/web-platform/tests/beacon/resources/inspect-header.py
new file mode 100644
index 0000000000..f926ed43fc
--- /dev/null
+++ b/testing/web-platform/tests/beacon/resources/inspect-header.py
@@ -0,0 +1,18 @@
+def main(request, response):
+    headers = [(b"Content-Type", b"text/plain")]
+    command = request.GET.first(b"cmd").lower()
+    test_id = request.GET.first(b"id")
+    header = request.GET.first(b"header")
+    if command == b"put":
+        request.server.stash.put(test_id, request.headers.get(header, b""))
+
+    elif command == b"get":
+        stashed_header = request.server.stash.take(test_id)
+        if stashed_header is not None:
+            headers.append((b"x-request-" + header, stashed_header))
+
+    else:
+        response.set_error(400, u"Bad Command")
+        return u"ERROR: Bad Command!"
+
+    return headers, u""