Created attachment 172395 [details] Demonstrates Bug Summary: Changing background-color and left at the same time will not change the background-color (under graphics acceleration). Steps to Reproduce: 1. Open attached BackgroundColorBug.html Expected Results: All the boxes slowly change color. Actual Results: Only the boxes not moving or not using "-webkit-transform:rotateY(0deg)" actually change color. Regression: Has happened for a while, not new to 6.0, but still bad. Notes: Behavior in Chrome 22, Canary 25.0.1315.1: reproduces Behavior in Chrome for Windows: reproduces Behavior in Firefox 16 (if applicable): Does not occur Chromium bug: http://code.google.com/p/chromium/issues/detail?id=159253 Radar: <rdar://problem/12628214> Changing background-color and left at the same time does not work This affects customers using Tumult Hype (http://tumult.com/hype).
And of course: reproduces on the WebKit Nightly r133465 and Safari 6.0.2
Created attachment 204701 [details] Patch
Comment on attachment 204701 [details] Patch Attachment 204701 [details] did not pass win-ews (win): Output: http://webkit-queues.appspot.com/results/923080 New failing tests: fast/media/mq-transform-03.html fast/media/mq-transform-02.html platform/win/accessibility/multiple-select-element-role.html
Created attachment 204754 [details] Archive of layout-test-results from APPLE-EWS-6 for win-future The attached test failures were seen while running run-webkit-tests on the win-ews. Bot: APPLE-EWS-6 Port: win-future Platform: CYGWIN_NT-6.1-WOW64-1.7.20-0.266-5-3-i686-32bit
Created attachment 204879 [details] Patch
The patch fixes the background-color issue, however the same problem occurs with setting the text color for a div. I've added a reproduction case which demonstrations the problem (TextColorBug.html).
Created attachment 208203 [details] Demonstrates same bug but with text color
I filed this new bug for the text color issue: https://bugs.webkit.org/show_bug.cgi?id=119524
Does this bug still apply in Safari 9?
I checked Demonstrates Bug and confirmed that it wasn't reproducible on Safari 9.0.3. However, Bug 119524 remains.