Closed Bug 1290215 Opened 8 years ago Closed 8 years ago

ASSERTION: shouldn't have observed an animation being added twice: 'Not Reached', file /dom/base/nsDOMMutationObserver.h, line 819

Categories

(DevTools :: Inspector: Animations, defect)

50 Branch
x86
macOS
defect
Not set
normal

Tracking

(firefox50 affected)

RESOLVED DUPLICATE of bug 1189015
Tracking Status
firefox50 --- affected

People

(Reporter: kjozwiak, Unassigned)

Details

I'm seeing a lot of these errors continuously spam the terminal while using "Animations" via the Dev Tools/Inspector under about:home. I'm not sure if this is the intended behaviour, so I've created a bug just incase. [Child 87231] ###!!! ASSERTION: shouldn't have observed an animation being added twice: 'Not Reached', file /Users/kjozwiak/projects/mozilla-aurora/dom/base/nsDOMMutationObserver.h, line 819 [Child 87231] ###!!! ASSERTION: shouldn't have observed an animation being removed twice: 'Not Reached', file /Users/kjozwiak/projects/mozilla-aurora/dom/base/nsDOMMutationObserver.h, line 859 Sometimes, I'll see the following errors as well: (could be unrelated though) JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. JavaScript error: , line 0: AbortError: The operation was aborted. STR: * run fx, about:home should be opened * Open the inspector via Hamburger Menu -> Developer -> Inspector (or keyboard shortcut) * click on "Animations" * hover over the Downloads, Bookmarks, History, Add-ons, etc.. buttons and you'll notice the terminal being spammed with the above errors Reproduced with the following builds: * fx50.0a1, buildId: 20160728114300, changeset: afb47dfb71ed * fx49.0a2, buildId: 20160728110524, changeset: fbf0cb3a7651
Status: NEW → RESOLVED
Closed: 8 years ago
Resolution: --- → DUPLICATE
Product: Firefox → DevTools
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