[Webkit-unassigned] [Bug 46576] <canvas> stops working when out of view for some time

Sun Sep 26 12:29:34 PDT 2010

https://bugs.webkit.org/show_bug.cgi?id=46576

Andreas Kling <andreas.kling at nokia.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID
                 CC|                            |andreas.kling at nokia.com

--- Comment #1 from Andreas Kling <andreas.kling at nokia.com>  2010-09-26 12:29:34 PST ---
Your code ends up calling CanvasRenderingContext2D's arc() with x=NaN and y=NaN, which makes WebKit ignore the call in accordance with HTML5:

"Except where otherwise specified, for the 2D context interface, any method call with a numeric argument whose value is infinite or a NaN value must be ignored."

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#2dcontext

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