Backed out changeset 133c9084af25 (bug 1793736) for causing failures at browser_navigationPreload_read_after_respondWith.js.

dom/fetch/Fetch.cpp

@@ -6,7 +6,6 @@
 
 #include "Fetch.h"
 
-#include "js/RootingAPI.h"
 #include "js/Value.h"
 #include "mozilla/CycleCollectedJSContext.h"
 #include "mozilla/dom/Document.h"
@@ -55,18 +54,15 @@ namespace mozilla::dom {
 namespace {
 
 void AbortStream(JSContext* aCx, ReadableStream* aReadableStream,
-                 ErrorResult& aRv, JS::Handle<JS::Value> aReasonDetails) {
+                 ErrorResult& aRv) {
   if (aReadableStream->State() != ReadableStream::ReaderState::Readable) {
     return;
   }
 
-  JS::Rooted<JS::Value> value(aCx, aReasonDetails);
-
-  if (aReasonDetails.isUndefined()) {
-    RefPtr<DOMException> e = DOMException::Create(NS_ERROR_DOM_ABORT_ERR);
-    if (!GetOrCreateDOMReflector(aCx, e, &value)) {
-      return;
-    }
+  RefPtr<DOMException> e = DOMException::Create(NS_ERROR_DOM_ABORT_ERR);
+  JS::Rooted<JS::Value> value(aCx);
+  if (!GetOrCreateDOMReflector(aCx, e, &value)) {
+    return;
   }
 
   ReadableStreamError(aCx, aReadableStream, value, aRv);
@@ -284,8 +280,7 @@ class WorkerFetchResolver final : public FetchDriverObserver {
   void OnResponseAvailableInternal(
       SafeRefPtr<InternalResponse> aResponse) override;
 
-  void OnResponseEnd(FetchDriverObserver::EndReason aReason,
-                     JS::Handle<JS::Value> aReasonDetails) override;
+  void OnResponseEnd(FetchDriverObserver::EndReason aReason) override;
 
   bool NeedOnDataAvailable() override;
 
@@ -361,14 +356,9 @@ class MainThreadFetchResolver final : public FetchDriverObserver {
 
   void SetLoadGroup(nsILoadGroup* aLoadGroup) { mLoadGroup = aLoadGroup; }
 
-  void OnResponseEnd(FetchDriverObserver::EndReason aReason,
-                     JS::Handle<JS::Value> aReasonDetails) override {
+  void OnResponseEnd(FetchDriverObserver::EndReason aReason) override {
     if (aReason == eAborted) {
-      if (!aReasonDetails.isUndefined()) {
-        mPromise->MaybeReject(aReasonDetails);
-      } else {
-        mPromise->MaybeReject(NS_ERROR_DOM_ABORT_ERR);
-      }
+      mPromise->MaybeReject(NS_ERROR_DOM_ABORT_ERR);
     }
 
     mFetchObserver = nullptr;
@@ -521,14 +511,8 @@ already_AddRefed<Promise> FetchRequest(nsIGlobalObject* aGlobal,
 
   if (signalImpl && signalImpl->Aborted()) {
     // Already aborted signal rejects immediately.
-    JS::Rooted<JS::Value> reason(cx, signalImpl->RawReason());
-    if (reason.get().isUndefined()) {
-      aRv.Throw(NS_ERROR_DOM_ABORT_ERR);
-      return nullptr;
-    }
-
-    p->MaybeReject(reason);
-    return p.forget();
+    aRv.Throw(NS_ERROR_DOM_ABORT_ERR);
+    return nullptr;
   }
 
   JS::Realm* realm = JS::GetCurrentRealmOrNull(cx);
@@ -881,8 +865,8 @@ void WorkerFetchResolver::OnDataAvailable() {
   Unused << r->Dispatch();
 }
 
-void WorkerFetchResolver::OnResponseEnd(FetchDriverObserver::EndReason aReason,
-                                        JS::Handle<JS::Value> aReasonDetails) {
+void WorkerFetchResolver::OnResponseEnd(
+    FetchDriverObserver::EndReason aReason) {
   AssertIsOnMainThread();
   MutexAutoLock lock(mPromiseProxy->Lock());
   if (mPromiseProxy->CleanedUp()) {
@@ -891,8 +875,6 @@ void WorkerFetchResolver::OnResponseEnd(FetchDriverObserver::EndReason aReason,
 
   FlushConsoleReport();
 
-  Unused << aReasonDetails;
-
   RefPtr<WorkerFetchResponseEndRunnable> r = new WorkerFetchResponseEndRunnable(
       mPromiseProxy->GetWorkerPrivate(), this, aReason);
 
@@ -1211,20 +1193,9 @@ already_AddRefed<Promise> FetchBody<Derived>::ConsumeBody(
 
   RefPtr<AbortSignalImpl> signalImpl =
       DerivedClass()->GetSignalImplToConsumeBody();
-
   if (signalImpl && signalImpl->Aborted()) {
-    JS::Rooted<JS::Value> abortReason(aCx, signalImpl->RawReason());
-
-    if (abortReason.get().isUndefined()) {
-      aRv.Throw(NS_ERROR_DOM_ABORT_ERR);
-      return nullptr;
-    }
-
-    nsCOMPtr<nsIGlobalObject> go = DerivedClass()->GetParentObject();
-
-    RefPtr<Promise> promise = Promise::Create(go, aRv);
-    promise->MaybeReject(abortReason);
-    return promise.forget();
+    aRv.Throw(NS_ERROR_DOM_ABORT_ERR);
+    return nullptr;
   }
 
   bool bodyUsed = GetBodyUsed(aRv);
@@ -1369,8 +1340,7 @@ void FetchBody<Derived>::SetReadableStreamBody(JSContext* aCx,
   bool aborted = signalImpl->Aborted();
   if (aborted) {
     IgnoredErrorResult result;
-    JS::Rooted<JS::Value> abortReason(aCx, signalImpl->RawReason());
-    AbortStream(aCx, mReadableStreamBody, result, abortReason);
+    AbortStream(aCx, mReadableStreamBody, result);
     if (NS_WARN_IF(result.Failed())) {
       return;
     }
@@ -1425,8 +1395,7 @@ already_AddRefed<ReadableStream> FetchBody<Derived>::GetBody(JSContext* aCx,
   RefPtr<AbortSignalImpl> signalImpl = DerivedClass()->GetSignalImpl();
   if (signalImpl) {
     if (signalImpl->Aborted()) {
-      JS::Rooted<JS::Value> abortReason(aCx, signalImpl->RawReason());
-      AbortStream(aCx, body, aRv, abortReason);
+      AbortStream(aCx, body, aRv);
       if (NS_WARN_IF(aRv.Failed())) {
         return nullptr;
       }
@@ -1530,9 +1499,7 @@ void FetchBody<Derived>::RunAbortAlgorithm() {
 
   RefPtr<ReadableStream> body(mReadableStreamBody);
   IgnoredErrorResult result;
-
-  JS::Rooted<JS::Value> abortReason(cx, Signal()->RawReason());
-  AbortStream(cx, body, result, abortReason);
+  AbortStream(cx, body, result);
 }
 
 template void FetchBody<Request>::RunAbortAlgorithm();

dom/fetch/FetchDriver.cpp

@@ -4,7 +4,6 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#include "js/Value.h"
 #include "mozilla/DebugOnly.h"
 #include "mozilla/dom/FetchDriver.h"
 
@@ -589,7 +588,7 @@ nsresult FetchDriver::HttpFetch(
     secFlags |= nsILoadInfo::SEC_DONT_FOLLOW_REDIRECTS;
   }
 
-  // This handles the use credentials flag in "HTTP
+  // This is handles the use credentials flag in "HTTP
   // network or cache fetch" in the spec and decides whether to transmit
   // cookies and other identifying information.
   if (mRequest->GetCredentialsMode() == RequestCredentials::Include) {
@@ -932,8 +931,7 @@ void FetchDriver::FailWithNetworkError(nsresult rv) {
 
   // mObserver could be null after OnResponseAvailable().
   if (mObserver) {
-    mObserver->OnResponseEnd(FetchDriverObserver::eByNetworking,
-                             JS::UndefinedHandleValue);
+    mObserver->OnResponseEnd(FetchDriverObserver::eByNetworking);
     mObserver = nullptr;
   }
 
@@ -1462,8 +1460,7 @@ void FetchDriver::FinishOnStopRequest(
   }
 
   if (mObserver) {
-    mObserver->OnResponseEnd(FetchDriverObserver::eByNetworking,
-                             JS::UndefinedHandleValue);
+    mObserver->OnResponseEnd(FetchDriverObserver::eByNetworking);
     mObserver = nullptr;
   }
 
@@ -1637,8 +1634,7 @@ void FetchDriver::RunAbortAlgorithm() {
 #ifdef DEBUG
     mResponseAvailableCalled = true;
 #endif
-    JS::Rooted<JS::Value> reason(RootingCx(), Signal()->RawReason());
-    mObserver->OnResponseEnd(FetchDriverObserver::eAborted, reason);
+    mObserver->OnResponseEnd(FetchDriverObserver::eAborted);
     mObserver = nullptr;
   }
 

dom/fetch/FetchDriver.h

@@ -59,8 +59,7 @@ class FetchDriverObserver {
     eByNetworking,
   };
 
-  virtual void OnResponseEnd(EndReason aReason,
-                             JS::Handle<JS::Value> aReasonDetails){};
+  virtual void OnResponseEnd(EndReason aReason){};
 
   nsIConsoleReportCollector* GetReporter() const { return mReporter; }
 

dom/fetch/FetchService.cpp

@@ -208,8 +208,7 @@ void FetchService::FetchInstance::Cancel() {
 }
 
 void FetchService::FetchInstance::OnResponseEnd(
-    FetchDriverObserver::EndReason aReason,
-    JS::Handle<JS::Value> aReasonDetails) {
+    FetchDriverObserver::EndReason aReason) {
   FETCH_LOG(("FetchInstance::OnResponseEnd [%p]", this));
   if (aReason == eAborted) {
     FETCH_LOG(("FetchInstance::OnResponseEnd end with eAborted"));

dom/fetch/FetchService.h

@@ -116,8 +116,7 @@ class FetchService final : public nsIObserver {
     void Cancel();
 
     /* FetchDriverObserver interface */
-    void OnResponseEnd(FetchDriverObserver::EndReason aReason,
-                       JS::Handle<JS::Value> aReasonDetails) override;
+    void OnResponseEnd(FetchDriverObserver::EndReason aReason) override;
     void OnResponseAvailableInternal(
         SafeRefPtr<InternalResponse> aResponse) override;
     bool NeedOnDataAvailable() override;

testing/web-platform/meta/fetch/api/abort/general.any.js.ini

@@ -13,6 +13,12 @@
     expected:
       if (os == "linux") and not fission: [PASS, FAIL]
 
+  [Aborting rejects with abort reason]
+    expected: FAIL
+
+  [Signal on request object should also have abort reason]
+    expected: FAIL
+
 
 [general.any.html]
   [Stream will not error if body is empty. It's closed with an empty queue before it errors.]
@@ -25,6 +31,12 @@
     expected:
       if (os == "linux") and debug and not fission and not swgl: [PASS, FAIL]
 
+  [Aborting rejects with abort reason]
+    expected: FAIL
+
+  [Signal on request object should also have abort reason]
+    expected: FAIL
+
 
 [general.any.sharedworker.html]
   [Stream will not error if body is empty. It's closed with an empty queue before it errors.]
@@ -38,6 +50,12 @@
       if (os == "linux") and not swgl and fission and not debug: [PASS, FAIL]
       if (os == "linux") and not swgl and not fission and debug: [PASS, FAIL]
 
+  [Aborting rejects with abort reason]
+    expected: FAIL
+
+  [Signal on request object should also have abort reason]
+    expected: FAIL
+
   [Stream errors once aborted, after reading. Underlying connection closed.]
     expected:
       if (os == "linux") and debug and not fission and not swgl: [PASS, FAIL]
@@ -61,3 +79,9 @@
     expected:
       if (os == "linux") and not swgl and not fission and not debug: [PASS, FAIL]
       if (os == "linux") and swgl: [PASS, FAIL]
+
+  [Aborting rejects with abort reason]
+    expected: FAIL
+
+  [Signal on request object should also have abort reason]
+    expected: FAIL

testing/web-platform/meta/fetch/api/abort/serviceworker-intercepted.https.html.ini

@@ -1,7 +1,13 @@
 [serviceworker-intercepted.https.html]
   expected: TIMEOUT
+  [fetch() rejects with abort reason]
+    expected: FAIL
+
   [Service Worker can observe the fetch abort and associated abort reason]
     expected: TIMEOUT
 
   [Abort reason serialization happens on abort]
     expected: NOTRUN
+
+  [fetch() response body has abort reason]
+    expected: FAIL