1036362 - div styles cannot be applied when overlaying a canvas element on Mac OSX 10.8.2

Status: UNCONFIRMED

(Core :: Graphics, defect)

Description

[Liang]

Attachment: snapshot comparison.png

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36

Steps to reproduce:

This issue happens in Mac OSX 10.8.2. (10.8.6 and 10.9.4 works fine)
1. Install the current latest Firefox, version 30.0 on Mac 10.8.2
2. Open Firefox and input URL: http://jsbin.com/magit/
3. Mouse click the yellow 'Click Me'.


Actual results:

If you click on the right area of 'Click Me',  a blank div would display.
If the div does not intersect with the purple canvas element, it renders fine.


Expected results:

A red div 'POPUP' should always display no matter where we click.

Comment 1

[Boris Zbarsky [:bzbarsky]]

Sounds like a graphics issue if it's OS-version-specific...

Comment 2

[Daniel Holbert [:dholbert]]

(WORKSFORME in 64-bit Linux Nightly, BTW -- 33.0a1 (2014-07-08))