[Bug 11431] should mention that .toDataURL() for image/jpeg acts as if the image was composited against black

http://www.w3.org/Bugs/Public/show_bug.cgi?id=11431

--- Comment #2 from Philip Taylor <excors@gmail.com> 2010-11-30 11:16:05 UTC ---
The spec already says:

  "For image types that do not support an alpha channel, the image must be
composited onto a solid black background using the source-over operator, and
the resulting image must be the one used to create the data: URL."

so I think it's clear on what's required (which is what that test tests).

-- 
Configure bugmail: http://www.w3.org/Bugs/Public/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.

Received on Tuesday, 30 November 2010 11:16:12 UTC