117093 2013-05-31 14:29:50 -0700 HTMLCanvasElement supportsContext function does not account for optional attributes parameters 2024-09-04 01:06:02 -0700 1 1 1 Unclassified WebKit Canvas 528+ (Nightly build) Unspecified Unspecified RESOLVED INVALID InRadar P2 Normal --- 0 ruthiecftg webkit-unassigned annevk dino ruthiecftg webkit-bug-importer oldest_to_newest 895991 0 ruthiecftg 2013-05-31 14:29:50 -0700 Once landed, the patch for bug 70117 (https://bugs.webkit.org/show_bug.cgi?id=70117) implements the supportsContext function for HTMLCanvasElement as spec'ed in HTML standards (http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-canvas-supportscontext). HTML standards states that "The supportsContext(contextId, arguments...) method of the canvas element, when invoked, must return false if calling getContext() on the same object and with the same arguments would definitely return null at this time, and true otherwise." The patch for bug 70117 will not account for the optional arguments, i.e. it's return value is only based on the contextId parameter. supportsContext function (implemented in Source/WebCore/html/HTMLCanvasElement.cpp after the patch for bug 70117 lands) should be updated to account for the optional parameters. 895992 1 webkit-bug-importer 2013-05-31 14:30:05 -0700 <rdar://problem/14037811> 2057507 2 annevk 2024-09-04 01:06:02 -0700 This was removed from the specification and WebKit at some point.