###!!! ASSERTION: Default canvas font is invalid: 'res == NS_OK', file content/canvas/src/nsCanvasRenderingContext2D.cpp, line 2885
This has nothing to do with moving between frames. This assert will fire any time you use a <canvas> that's inside a document with no presshell (as in this case). I personally think the assert is bogus (and that the behavior is possibly semi-bogus too).
Summary: "ASSERTION: Default canvas font is invalid" after moving canvas between frames → "ASSERTION: Default canvas font is invalid" working with fonts on a canvas that has no presshell
It doesn't seem right to simply mute the assert, if the real problem is that we don't know how to deal with the font of a canvas in this situation - shouldn't we be fixing _that_ issue?
I guess we could try harder to create something, also in the absence of a pres shell... is that what you're suggesting?
Comment on attachment 523905 [details] [diff] [review] wip1 I merged this into the patch in bug 647480...
Attachment #523905 - Attachment is obsolete: true
Seems to have been fixed by the patch in bug 647480.
Assignee: nobody → matspal
Status: NEW → RESOLVED
Last Resolved: 8 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla5
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