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Comment by phoboslab | Hacker News Reader

Can anyone with a retina display and the Firefox nightly check this test case for Canvas, please: http://www.phoboslab.org/crap/backingstore/

I hope they didn't screw it up as bad as Apple did with Safari: http://www.phoboslab.org/log/2012/09/drawing-pixels-is-hard

Edit: judging from some comments in the source, the Canvas element still uses a low resolution, so the test case should work as expected in any case.

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I just tested this and unfortunately the test case doesn't pass on the nightly. I am seeing (252,40,252) instead of the (255,0,255).

Doesn't work in Firefox on Windows either, so maybe the test case is just broken? I see (0,0,0),(212,52,248)

Same here:

(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252), (252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0), (0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252), (252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0), (0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252), (252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0), (0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252), (252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),(252,40,252),(0,0,0),

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:18.0) Gecko/18.0 Firefox/18.0 as downloaded and installed just a few minutes ago.

Retina support is not in Nightly yet. But very very soon (if not today, tomorrow).

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