1 files changed, 19 insertions, 4 deletions
diff --git a/dom/webidl/Request.webidl b/dom/webidl/Request.webidl
index 54e4e5ec95..2480d2b39a 100644
--- a/dom/webidl/Request.webidl
+++ b/dom/webidl/Request.webidl
@@ -7,20 +7,25 @@
  * https://fetch.spec.whatwg.org/#request-class
  */
 
-typedef (Request or USVString) RequestInfo;
+typedef (Request or UTF8String) RequestInfo;
 typedef unsigned long nsContentPolicyType;
 
 [Exposed=(Window,Worker)]
 interface Request {
+  /**
+   * Note that Requests created from system principal (ie "privileged"/chrome)
+   * code will default to omitting credentials. You can override this behaviour
+   * using the ``credentials`` member on the ``init`` dictionary.
+   */
   [Throws]
   constructor(RequestInfo input, optional RequestInit init = {});
 
   readonly attribute ByteString method;
-  readonly attribute USVString url;
+  readonly attribute UTF8String url;
   [SameObject, BinaryName="headers_"] readonly attribute Headers headers;
 
   readonly attribute RequestDestination destination;
-  readonly attribute USVString referrer;
+  readonly attribute UTF8String referrer;
   [BinaryName="referrerPolicy_"]
   readonly attribute ReferrerPolicy referrerPolicy;
   readonly attribute RequestMode mode;
@@ -29,6 +34,9 @@ interface Request {
   readonly attribute RequestRedirect redirect;
   readonly attribute DOMString integrity;
 
+  [Pref="dom.fetchKeepalive.enabled"]
+  readonly attribute boolean keepalive;
+
   // If a main-thread fetch() promise rejects, the error passed will be a
   // nsresult code.
   [ChromeOnly]
@@ -51,14 +59,21 @@ dictionary RequestInit {
   ByteString method;
   HeadersInit headers;
   BodyInit? body;
-  USVString referrer;
+  UTF8String referrer;
   ReferrerPolicy referrerPolicy;
   RequestMode mode;
+  /**
+   * If not set, defaults to "same-origin", except for system principal (chrome)
+   * requests where the default is "omit".
+   */
   RequestCredentials credentials;
   RequestCache cache;
   RequestRedirect redirect;
   DOMString integrity;
 
+  [Pref="dom.fetchKeepalive.enabled"]
+  boolean keepalive;
+
   [ChromeOnly]
   boolean mozErrors;