17954 2008-03-19 12:08:40 -0700 Canvas arc() with radius of 0 throws exception 2008-03-19 15:29:11 -0700 1 1 1 Unclassified WebKit DOM 528+ (Nightly build) All All RESOLVED FIXED http://ejohn.org/files/bugs/arc/ HasReduction, InRadar P2 Normal --- 0 jresig webkit-unassigned oliver oldest_to_newest 74462 0 jresig 2008-03-19 12:08:40 -0700 See the following reduction: http://ejohn.org/files/bugs/arc/ Which throws the following error: Error: INDEX_SIZE_ERR: DOM Exception 1 http://ejohn.org/files/bugs/arc/ (line 5) According to the canvas spec: http://www.whatwg.org/specs/web-apps/current-work/multipage/section-the-canvas.html "Negative values for radius must cause the implementation to raise an INDEX_SIZE_ERR exception." However, that is not the case for arcs with a radius of 0. 74463 1 jresig 2008-03-19 12:12:47 -0700 For posterity, here's the reduction: <canvas width="100" height="100" id="canvas"></canvas> <script>window.onload = function(){ var c = document.getElementsByTagName("canvas")[0]; var context = c.getContext("2d"); context.arc( 10, 10, 0, 0, 180, false ); };</script> 74464 2 mrowe 2008-03-19 13:11:34 -0700 <rdar://problem/5808318> 74475 3 oliver 2008-03-19 15:29:11 -0700 Landed r31162