Bug 141983

Summary:	Shadow DOM document doesn't always match CSS document (for image generators)
Product:	WebKit	Reporter:	Dean Jackson <dino>
Component:	DOM	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	528+ (Nightly build)
Hardware:	Unspecified
OS:	Unspecified

Description Dean Jackson 2015-02-24 14:00:44 PST

I hit this issue with the media controls on iOS.

They use a -webkit-canvas(name) for the background of an element. Later, when we want to paint into that, the reference to document is pointing to a different place than the context was created, even though the element is in the shadow DOM. I had to use ownerDocument to get it to work.

This is also not always reproducible. It seems that if you try to paint into the context BEFORE you've caused a layout, everything works.


See <rdar://problem/19923536> for more details.

Comment 1 Radar WebKit Bug Importer 2015-02-24 14:01:38 PST

<rdar://problem/19943135>

Comment 2 Simon Fraser (smfr) 2015-05-13 19:26:44 PDT

Fixing via the (ironically numbered) bug 144983

Comment 3 Simon Fraser (smfr) 2015-05-13 19:28:12 PDT


*** This bug has been marked as a duplicate of bug 144983 ***