Open Bug 1803304 Opened 2 years ago Updated 2 years ago

BrowserTestUtils.addContentEventListener() has a race that the function returns even if setting up the given event listener hasn't been finished in the content process

Categories

(Testing :: Mochitest, defect, P3)

Product:
Testing
Component:
Mochitest
Version:
Default
Type:
defect

Tracking

(Not tracked)

People

(Reporter: hiro, Unassigned)

Details

Though I am not 100% sure (I haven't tested on any example), the function calls flush(), but it doesn't ensure that the event listener has been set in the content process, thus it's possible subsequent JS will affect the content process before the event listener has been set (I suppose the order depends on IPC call priority).

The severity field is not set for this bug.
:ahal, could you have a look please?

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Flags: needinfo?(ahal)
Severity: -- → S2
Flags: needinfo?(ahal)
Priority: -- → P3
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