[Webkit-unassigned] [Bug 12906] New: REGRESSION: Canvas is pixelated when the page is opened in a background tab

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=12906

           Summary: REGRESSION: Canvas is pixelated when the page is opened
                    in a background tab
           Product: WebKit
           Version: 522+ (nightly)
          Platform: Macintosh
               URL: http://www.cocoablogs.com/
        OS/Version: Mac OS X 10.4
            Status: NEW
          Keywords: Regression, NeedsRadar
          Severity: Normal
          Priority: P1
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mitz at webkit.org


To reproduce:
Create a new tab and open the URL in that (foreground) tab. In Safari
Preferences > Tabs, deselect "select new tabs as they are created", then open
the URL in a background tab. After the page is finished loading in the
background tab, switch to it.

Expected results:
The clock should render at 1:1 resolution in the background tab, just like in
the foreground tab.

Actual results:
The clock is pixelated in the tab that loaded in the background (looks like
2:1).

Regression:
Yes, shipping WebKit renders at full resolution in both tabs.


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