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f6ed54baf4
d146adf made the fetch callbacks use the media element via weak
references. This caused the `error` event not to fire on media elements
that are detached from the document and go out of scope, if the GC got
to them before the fetch completed.
Instead of relying on weak references in the callbacks, we can stop the
ongoing fetch when the document becomes inactive to allow it to be GCed
after that point. By storing the FetchData on the media element, we're
able to resume the fetch where it left off if the document becomes
active again.
We could potentially figure out a way to make elements with no event
handlers and no parent stop their fetches in order to be GCed sooner,
but that is probably a bit fiddly, so may not be worth it for now.
Fixes a rare flake in WPT's `html/semantics/embedded-content/media-
elements/error-codes/error.html` test. A test to force the bug using
`Internals::gc()` has been added.
2 lines
18 B
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2 lines
18 B
Plaintext
error event fired
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