1453190 - Assertion failure: !mIsBeingDestroyed, at src/docshell/base/nsDocShell.cpp:12970

Status: RESOLVED FIXED

(Core :: DOM: Editor, defect, P3)

Description

[Tyson Smith [:tsmith]]

Attachment: testcase.html

Assertion failure: !mIsBeingDestroyed, at src/docshell/base/nsDocShell.cpp:12970

#0 nsDocShell::EnsureEditorData() src/docshell/base/nsDocShell.cpp:12970:3
#1 nsDocShell::GetEditingSession(nsIEditingSession**) src/docshell/base/nsDocShell.cpp:14347:8
#2 nsHTMLDocument::TurnEditingOff() src/dom/html/nsHTMLDocument.cpp:2288:27
#3 nsHTMLDocument::EditingStateChanged() src/dom/html/nsHTMLDocument.cpp:2339:12
#4 nsHTMLDocument::MaybeEditingStateChanged() src/dom/html/nsHTMLDocument.cpp:2105:7
#5 mozAutoDocUpdate::~mozAutoDocUpdate() src/dom/base/mozAutoDocUpdate.h:40:18
#6 nsINode::ReplaceOrInsertBefore(bool, nsINode*, nsINode*, mozilla::ErrorResult&) src/dom/base/nsINode.cpp:1989:5
#7 nsINode::Append(mozilla::dom::Sequence<mozilla::dom::OwningNodeOrString> const&, mozilla::ErrorResult&) src/dom/base/nsINode.cpp:1638:3
#8 mozilla::dom::ElementBinding::append(JSContext*, JS::Handle<JSObject*>, mozilla::dom::Element*, JSJitMethodCallArgs const&) src/obj-firefox/dom/bindings/ElementBinding.cpp:5218:9
#9 bool mozilla::dom::binding_detail::GenericMethod<mozilla::dom::binding_detail::NormalThisPolicy, mozilla::dom::binding_detail::ThrowExceptions>(JSContext*, unsigned int, JS::Value*) src/dom/bindings/BindingUtils.cpp:3191:13
#10 js::CallJSNative(JSContext*, bool (*)(JSContext*, unsigned int, JS::Value*), JS::CallArgs const&) src/js/src/vm/JSContext-inl.h:290:15
#11 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) src/js/src/vm/Interpreter.cpp:467:16
#12 InternalCall(JSContext*, js::AnyInvokeArgs const&) src/js/src/vm/Interpreter.cpp:516:12
#13 Interpret(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:3084:18
#14 js::RunScript(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:417:12
#15 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) src/js/src/vm/Interpreter.cpp:489:15
#16 InternalCall(JSContext*, js::AnyInvokeArgs const&) src/js/src/vm/Interpreter.cpp:516:12
#17 js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>) src/js/src/vm/Interpreter.cpp:535:10
#18 JS::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) src/js/src/jsapi.cpp:3003:12
#19 mozilla::dom::EventHandlerNonNull::Call(JSContext*, JS::Handle<JS::Value>, mozilla::dom::Event&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&) src/obj-firefox/dom/bindings/EventHandlerBinding.cpp:264:37
#20 void mozilla::dom::EventHandlerNonNull::Call<nsISupports*>(nsISupports* const&, mozilla::dom::Event&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&, char const*, mozilla::dom::CallbackObject::ExceptionHandling, JSCompartment*) src/obj-firefox/dist/include/mozilla/dom/EventHandlerBinding.h:363:12
#21 mozilla::JSEventHandler::HandleEvent(nsIDOMEvent*) src/dom/events/JSEventHandler.cpp:215:12
#22 mozilla::EventListenerManager::HandleEventSubType(mozilla::EventListenerManager::Listener*, nsIDOMEvent*, mozilla::dom::EventTarget*) src/dom/events/EventListenerManager.cpp:1123:51
#23 mozilla::EventListenerManager::HandleEventInternal(nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent**, mozilla::dom::EventTarget*, nsEventStatus*) src/dom/events/EventListenerManager.cpp:1292:20
#24 mozilla::EventTargetChainItem::HandleEvent(mozilla::EventChainPostVisitor&, mozilla::ELMCreationDetector&) src/dom/events/EventDispatcher.cpp:347:17
#25 mozilla::EventTargetChainItem::HandleEventTargetChain(nsTArray<mozilla::EventTargetChainItem>&, mozilla::EventChainPostVisitor&, mozilla::EventDispatchingCallback*, mozilla::ELMCreationDetector&) src/dom/events/EventDispatcher.cpp:527:16
#26 mozilla::EventDispatcher::Dispatch(nsISupports*, nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent*, nsEventStatus*, mozilla::EventDispatchingCallback*, nsTArray<mozilla::dom::EventTarget*>*) src/dom/events/EventDispatcher.cpp:933:9
#27 mozilla::EventDispatcher::DispatchDOMEvent(nsISupports*, mozilla::WidgetEvent*, nsIDOMEvent*, nsPresContext*, nsEventStatus*) src/dom/events/EventDispatcher.cpp:1012:12
#28 nsIDocument::DispatchPageTransition(mozilla::dom::EventTarget*, nsTSubstring<char16_t> const&, bool) src/dom/base/nsDocument.cpp:8457:3
#29 nsIDocument::OnPageHide(bool, mozilla::dom::EventTarget*) src/dom/base/nsDocument.cpp:8616:7
#30 nsDocumentViewer::PageHide(bool) src/layout/base/nsDocumentViewer.cpp:1394:14
#31 nsDocShell::FirePageHideNotificationInternal(bool, bool) src/docshell/base/nsDocShell.cpp:1143:20
#32 nsDocShell::FirePageHideNotification(bool) src/docshell/base/nsDocShell.cpp:1125:3
#33 nsDocShell::Destroy() src/docshell/base/nsDocShell.cpp:5472:9
#34 nsFrameLoader::DestroyDocShell() src/dom/base/nsFrameLoader.cpp:1822:15
#35 nsFrameLoaderDestroyRunnable::Run() src/dom/base/nsFrameLoader.cpp:1760:19
#36 nsIDocument::MaybeInitializeFinalizeFrameLoaders() src/dom/base/nsDocument.cpp:6717:22
#37 nsDocument::EndUpdate(unsigned int) src/dom/base/nsDocument.cpp:5097:3
#38 mozilla::dom::XULDocument::EndUpdate(unsigned int) src/dom/xul/XULDocument.cpp:2946:18
#39 mozAutoDocUpdate::~mozAutoDocUpdate() src/dom/base/mozAutoDocUpdate.h:40:18
#40 nsINode::doRemoveChildAt(unsigned int, bool, nsIContent*, nsAttrAndChildArray&) src/dom/base/nsINode.cpp:1674:1
#41 mozilla::dom::FragmentOrElement::RemoveChildAt_Deprecated(unsigned int, bool) src/dom/base/FragmentOrElement.cpp:1216:5
#42 nsXULElement::RemoveChildAt_Deprecated(unsigned int, bool) src/dom/xul/nsXULElement.cpp:876:22
#43 nsINode::RemoveChild(nsINode&, mozilla::ErrorResult&) src/dom/base/nsINode.cpp:549:3
#44 nsINode::Remove() src/dom/base/nsINode.cpp:1583:11
#45 mozilla::dom::ElementBinding::remove(JSContext*, JS::Handle<JSObject*>, mozilla::dom::Element*, JSJitMethodCallArgs const&) src/obj-firefox/dom/bindings/ElementBinding.cpp:4600:9
#46 bool mozilla::dom::binding_detail::GenericMethod<mozilla::dom::binding_detail::NormalThisPolicy, mozilla::dom::binding_detail::ThrowExceptions>(JSContext*, unsigned int, JS::Value*) src/dom/bindings/BindingUtils.cpp:3191:13
#47 js::CallJSNative(JSContext*, bool (*)(JSContext*, unsigned int, JS::Value*), JS::CallArgs const&) src/js/src/vm/JSContext-inl.h:290:15
#48 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) src/js/src/vm/Interpreter.cpp:467:16
#49 InternalCall(JSContext*, js::AnyInvokeArgs const&) src/js/src/vm/Interpreter.cpp:516:12
#50 Interpret(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:3084:18
#51 js::RunScript(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:417:12
#52 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) src/js/src/vm/Interpreter.cpp:489:15
#53 InternalCall(JSContext*, js::AnyInvokeArgs const&) src/js/src/vm/Interpreter.cpp:516:12
#54 Interpret(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:3084:18
#55 js::RunScript(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:417:12
#56 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) src/js/src/vm/Interpreter.cpp:489:15
#57 InternalCall(JSContext*, js::AnyInvokeArgs const&) src/js/src/vm/Interpreter.cpp:516:12
#58 Interpret(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:3084:18
#59 js::RunScript(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:417:12
#60 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) src/js/src/vm/Interpreter.cpp:489:15
#61 InternalCall(JSContext*, js::AnyInvokeArgs const&) src/js/src/vm/Interpreter.cpp:516:12
#62 js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>) src/js/src/vm/Interpreter.cpp:535:10
#63 JS::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) src/js/src/jsapi.cpp:3003:12
#64 mozilla::dom::EventListener::HandleEvent(JSContext*, JS::Handle<JS::Value>, mozilla::dom::Event&, mozilla::ErrorResult&) src/obj-firefox/dom/bindings/EventListenerBinding.cpp:51:8
#65 void mozilla::dom::EventListener::HandleEvent<mozilla::dom::EventTarget*>(mozilla::dom::EventTarget* const&, mozilla::dom::Event&, mozilla::ErrorResult&, char const*, mozilla::dom::CallbackObject::ExceptionHandling, JSCompartment*) src/obj-firefox/dist/include/mozilla/dom/EventListenerBinding.h:66:12
#66 mozilla::EventListenerManager::HandleEventSubType(mozilla::EventListenerManager::Listener*, nsIDOMEvent*, mozilla::dom::EventTarget*) src/dom/events/EventListenerManager.cpp:1120:9
#67 mozilla::EventListenerManager::HandleEventInternal(nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent**, mozilla::dom::EventTarget*, nsEventStatus*) src/dom/events/EventListenerManager.cpp:1292:20
#68 mozilla::EventTargetChainItem::HandleEvent(mozilla::EventChainPostVisitor&, mozilla::ELMCreationDetector&) src/dom/events/EventDispatcher.cpp:347:17
#69 mozilla::EventTargetChainItem::HandleEventTargetChain(nsTArray<mozilla::EventTargetChainItem>&, mozilla::EventChainPostVisitor&, mozilla::EventDispatchingCallback*, mozilla::ELMCreationDetector&) src/dom/events/EventDispatcher.cpp:481:12
#70 mozilla::EventDispatcher::Dispatch(nsISupports*, nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent*, nsEventStatus*, mozilla::EventDispatchingCallback*, nsTArray<mozilla::dom::EventTarget*>*) src/dom/events/EventDispatcher.cpp:933:9
#71 mozilla::EventDispatcher::DispatchDOMEvent(nsISupports*, mozilla::WidgetEvent*, nsIDOMEvent*, nsPresContext*, nsEventStatus*) src/dom/events/EventDispatcher.cpp:1012:12
#72 nsGlobalWindowInner::DispatchEvent(mozilla::dom::Event&, mozilla::dom::CallerType, mozilla::ErrorResult&) src/dom/base/nsGlobalWindowInner.cpp:4491:17
#73 nsContentUtils::DispatchEvent(nsIDocument*, nsISupports*, nsTSubstring<char16_t> const&, bool, bool, bool, bool*, bool) src/dom/base/nsContentUtils.cpp:4480:28
#74 nsContentUtils::DispatchTrustedEvent(nsIDocument*, nsISupports*, nsTSubstring<char16_t> const&, bool, bool, bool*) src/dom/base/nsContentUtils.cpp:4448:10
#75 nsGlobalWindowOuter::DispatchCustomEvent(nsTSubstring<char16_t> const&) src/dom/base/nsGlobalWindowOuter.cpp:3837:3
#76 nsGlobalWindowOuter::CloseOuter(bool) src/dom/base/nsGlobalWindowOuter.cpp:5980:8
#77 mozilla::dom::WindowBinding::close(JSContext*, JS::Handle<JSObject*>, nsGlobalWindowInner*, JSJitMethodCallArgs const&) src/obj-firefox/dom/bindings/WindowBinding.cpp:1771:9
#78 bool mozilla::dom::binding_detail::GenericMethod<mozilla::dom::binding_detail::CrossOriginThisPolicy, mozilla::dom::binding_detail::ThrowExceptions>(JSContext*, unsigned int, JS::Value*) src/dom/bindings/BindingUtils.cpp:3191:13
#79 js::CallJSNative(JSContext*, bool (*)(JSContext*, unsigned int, JS::Value*), JS::CallArgs const&) src/js/src/vm/JSContext-inl.h:290:15
#80 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) src/js/src/vm/Interpreter.cpp:467:16
#81 InternalCall(JSContext*, js::AnyInvokeArgs const&) src/js/src/vm/Interpreter.cpp:516:12
#82 Interpret(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:3084:18
#83 js::RunScript(JSContext*, js::RunState&) src/js/src/vm/Interpreter.cpp:417:12
#84 js::InternalCallOrConstruct(JSContext*, JS::CallArgs const&, js::MaybeConstruct) src/js/src/vm/Interpreter.cpp:489:15
#85 InternalCall(JSContext*, js::AnyInvokeArgs const&) src/js/src/vm/Interpreter.cpp:516:12
#86 js::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, js::AnyInvokeArgs const&, JS::MutableHandle<JS::Value>) src/js/src/vm/Interpreter.cpp:535:10
#87 JS::Call(JSContext*, JS::Handle<JS::Value>, JS::Handle<JS::Value>, JS::HandleValueArray const&, JS::MutableHandle<JS::Value>) src/js/src/jsapi.cpp:3003:12
#88 mozilla::dom::EventHandlerNonNull::Call(JSContext*, JS::Handle<JS::Value>, mozilla::dom::Event&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&) src/obj-firefox/dom/bindings/EventHandlerBinding.cpp:264:37
#89 void mozilla::dom::EventHandlerNonNull::Call<nsISupports*>(nsISupports* const&, mozilla::dom::Event&, JS::MutableHandle<JS::Value>, mozilla::ErrorResult&, char const*, mozilla::dom::CallbackObject::ExceptionHandling, JSCompartment*) src/obj-firefox/dist/include/mozilla/dom/EventHandlerBinding.h:363:12
#90 mozilla::JSEventHandler::HandleEvent(nsIDOMEvent*) src/dom/events/JSEventHandler.cpp:215:12
#91 mozilla::EventListenerManager::HandleEventSubType(mozilla::EventListenerManager::Listener*, nsIDOMEvent*, mozilla::dom::EventTarget*) src/dom/events/EventListenerManager.cpp:1123:51
#92 mozilla::EventListenerManager::HandleEventInternal(nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent**, mozilla::dom::EventTarget*, nsEventStatus*) src/dom/events/EventListenerManager.cpp:1292:20
#93 mozilla::EventTargetChainItem::HandleEvent(mozilla::EventChainPostVisitor&, mozilla::ELMCreationDetector&) src/dom/events/EventDispatcher.cpp:347:17
#94 mozilla::EventTargetChainItem::HandleEventTargetChain(nsTArray<mozilla::EventTargetChainItem>&, mozilla::EventChainPostVisitor&, mozilla::EventDispatchingCallback*, mozilla::ELMCreationDetector&) src/dom/events/EventDispatcher.cpp:527:16
#95 mozilla::EventDispatcher::Dispatch(nsISupports*, nsPresContext*, mozilla::WidgetEvent*, nsIDOMEvent*, nsEventStatus*, mozilla::EventDispatchingCallback*, nsTArray<mozilla::dom::EventTarget*>*) src/dom/events/EventDispatcher.cpp:933:9
#96 nsDocumentViewer::LoadComplete(nsresult) src/layout/base/nsDocumentViewer.cpp:1066:7
#97 nsDocShell::EndPageLoad(nsIWebProgress*, nsIChannel*, nsresult) src/docshell/base/nsDocShell.cpp:7285:21
#98 nsDocShell::OnStateChange(nsIWebProgress*, nsIRequest*, unsigned int, nsresult) src/docshell/base/nsDocShell.cpp:7078:7
#99 non-virtual thunk to nsDocShell::OnStateChange(nsIWebProgress*, nsIRequest*, unsigned int, nsresult) src/docshell/base/nsDocShell.cpp
#100 nsDocLoader::DoFireOnStateChange(nsIWebProgress*, nsIRequest*, int&, nsresult) src/uriloader/base/nsDocLoader.cpp:1315:3
#101 nsDocLoader::doStopDocumentLoad(nsIRequest*, nsresult) src/uriloader/base/nsDocLoader.cpp:858:14
#102 nsDocLoader::DocLoaderIsEmpty(bool) src/uriloader/base/nsDocLoader.cpp:747:9
#103 nsDocLoader::OnStopRequest(nsIRequest*, nsISupports*, nsresult) src/uriloader/base/nsDocLoader.cpp:632:5
#104 non-virtual thunk to nsDocLoader::OnStopRequest(nsIRequest*, nsISupports*, nsresult) src/uriloader/base/nsDocLoader.cpp
#105 mozilla::net::nsLoadGroup::RemoveRequest(nsIRequest*, nsISupports*, nsresult) src/netwerk/base/nsLoadGroup.cpp:629:28
#106 nsIDocument::DoUnblockOnload() src/dom/base/nsDocument.cpp:8409:18
#107 nsDocument::UnblockOnload(bool) src/dom/base/nsDocument.cpp:8331:9
#108 nsIDocument::DispatchContentLoadedEvents() src/dom/base/nsDocument.cpp:5314:3
#109 mozilla::detail::RunnableMethodImpl<nsIDocument*, void (nsIDocument::*)(), true, (mozilla::RunnableKind)0>::Run() src/obj-firefox/dist/include/nsThreadUtils.h:1215:13
#110 nsThread::ProcessNextEvent(bool, bool*) src/xpcom/threads/nsThread.cpp:1096:14
#111 NS_ProcessNextEvent(nsIThread*, bool) src/xpcom/threads/nsThreadUtils.cpp:519:10
#112 mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) src/ipc/glue/MessagePump.cpp:97:21
#113 MessageLoop::RunInternal() src/ipc/chromium/src/base/message_loop.cc:326:10
#114 MessageLoop::Run() src/ipc/chromium/src/base/message_loop.cc:299:3
#115 nsBaseAppShell::Run() src/widget/nsBaseAppShell.cpp:157:27
#116 nsAppStartup::Run() src/toolkit/components/startup/nsAppStartup.cpp:290:30
#117 XREMain::XRE_mainRun() src/toolkit/xre/nsAppRunner.cpp:4834:22
#118 XREMain::XRE_main(int, char**, mozilla::BootstrapConfig const&) src/toolkit/xre/nsAppRunner.cpp:4979:8
#119 XRE_main(int, char**, mozilla::BootstrapConfig const&) src/toolkit/xre/nsAppRunner.cpp:5071:21
#120 do_main(int, char**, char**) src/browser/app/nsBrowserApp.cpp:231:22
#121 main src/browser/app/nsBrowserApp.cpp:304:16
#122 __libc_start_main /build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:291
#123 _start (firefox+0x423444)

Comment 1

[Makoto Kato [:m_kato]]

no crash on default setting

Comment 2

[Tyson Smith [:tsmith]]

Attachment: testcase.html

This test will trigger the issue with default prefs but requires "window.close()" to work automatically.

To trigger with default prefs open the test case in a new tab and then close that tab once it has loaded.

Comment 3

[Intermittent Failures Robot]

6 failures in 4439 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 5
• mozilla-inbound: 1

Platform breakdown:

• linux64-qr: 6

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1453190&startday=2019-07-29&endday=2019-08-04&tree=all

Comment 4

[Intermittent Failures Robot]

3 failures in 4666 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3

Platform breakdown:

• linux64: 2
• linux64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1453190&startday=2019-08-05&endday=2019-08-11&tree=all

Comment 5

[Intermittent Failures Robot]

12 failures in 4839 pushes (0.002 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 12

Platform breakdown:

• linux64: 3
• linux64-qr: 9

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1453190&startday=2019-08-12&endday=2019-08-18&tree=all

Comment 6

[Intermittent Failures Robot]

3 failures in 5073 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 3

Platform breakdown:

• linux64: 2
• linux64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1453190&startday=2019-08-19&endday=2019-08-25&tree=all

Comment 7

[Intermittent Failures Robot]

1 failures in 5047 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform breakdown:

• linux64: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1453190&startday=2019-08-26&endday=2019-09-01&tree=all

Comment 8

[Intermittent Failures Robot]

1 failures in 4637 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 1

Platform breakdown:

• linux64-qr: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures.html#/bugdetails?bug=1453190&startday=2019-09-09&endday=2019-09-15&tree=all

Comment 9

[Tyson Smith [:tsmith]]

This issue is frequently hit by fuzzers and can limit their effectiveness.

Please let me know if a Pernosco session will help get this issue resolved and I will create one.

Comment 10

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Makoto - can we please get some help fixing this bug?

Comment 11

[Makoto Kato [:m_kato]]

Yes, fix is simple that we should check whether docshell is destroying.

Comment 12

[Makoto Kato [:m_kato]]

https://treeherder.mozilla.org/#/jobs?repo=try&revision=48ce975e0ab62e5f6f9265f4f7b4a51fb4ec7bf6

Comment 13

[Makoto Kato [:m_kato]]

Attachment: Bug 1453190 - Don't get editing session during destroying docshell.

When closing window / documnet, if content modifies an element that has
contenteditable via unload event, it hits assertion in
nsDocShell::EnsureEditorData due to destroying document. So we should
return error before getting editing session.

Comment 14

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/0b9d0a86ebfd
Don't get editing session during destroying docshell. r=masayuki

Comment 15

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/0b9d0a86ebfd