Bug 1775006 - Skip tainted origin check for TRRServiceChannel, r=necko-reviewers,valentin

Differential Revision: https://phabricator.services.mozilla.com/D154652

netwerk/protocol/http/HttpBaseChannel.h

@@ -558,6 +558,9 @@ class HttpBaseChannel : public nsHashPropertyBag,
   [[nodiscard]] virtual nsresult SetupReplacementChannel(
       nsIURI*, nsIChannel*, bool preserveMethod, uint32_t redirectFlags);
 
+  // WHATWG Fetch Standard 4.4. HTTP-redirect fetch, step 10
+  virtual bool ShouldTaintReplacementChannelOrigin(nsIURI* aNewURI);
+
   // bundle calling OMR observers and marking flag into one function
   inline void CallOnModifyRequestObservers() {
     gHttpHandler->OnModifyRequest(this);
@@ -640,9 +643,6 @@ class HttpBaseChannel : public nsHashPropertyBag,
   nsCOMPtr<nsIEventTarget> mCurrentThread;
 
  private:
-  // WHATWG Fetch Standard 4.4. HTTP-redirect fetch, step 10
-  bool ShouldTaintReplacementChannelOrigin(nsIURI* aNewURI);
-
   // Proxy release all members above on main thread.
   void ReleaseMainThreadOnlyReferences();
 

netwerk/protocol/http/TRRServiceChannel.h

@@ -137,7 +137,10 @@ class TRRServiceChannel : public HttpBaseChannel,
   [[nodiscard]] virtual nsresult SetupReplacementChannel(
       nsIURI* aNewURI, nsIChannel* aNewChannel, bool aPreserveMethod,
       uint32_t aRedirectFlags) override;
-
+  // Skip this check for TRRServiceChannel.
+  virtual bool ShouldTaintReplacementChannelOrigin(nsIURI* aNewURI) override {
+    return false;
+  }
   virtual bool SameOriginWithOriginalUri(nsIURI* aURI) override;
   bool DispatchRelease();