311469 2026-04-04 01:49:42 -0700 SVGPointList should truncate on odd coordinate count instead of clearing the entire list 2026-04-09 20:03:18 -0700 1 1 1 Unclassified WebKit SVG WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=309219 https://github.com/web-platform-tests/wpt/pull/59084 InRadar P2 Normal --- 1 ahmad.saleem792 ahmad.saleem792 sabouhallawa webkit-bug-importer zimmermann oldest_to_newest 2196815 0 ahmad.saleem792 2026-04-04 01:49:42 -0700 Hi Team, Found recently progressed and now with missing coverage failing test, so this is to fix it. Per SVG 2 spec [1], when a polyline/polygon points attribute contains an odd number of coordinates (e.g. "0,0 100,0 20" where the trailing y value is missing), the successfully parsed coordinate pairs should be retained. Currently WebKit rejects the entire list and returns 0 items, instead of keeping the 2 valid pairs. This is covered by the WPT test svg/types/scripted/SVGList-parse-invalid-clears-items.html, subtest "SVGPointList truncates items when y attribute value is missing". The fix changes SVGPointList::parse() to break out of the parse loop when x succeeds but y is missing at end-of-string, retaining already-parsed pairs. Invalid tokens (e.g. "INVALID") at any position still correctly clear the entire list. [1] https://svgwg.org/svg2-draft/shapes.html#PolylineElement — "If an odd number of coordinates is provided, then the element is in error, with the same user agent behavior as occurs with an incorrectly specified 'path' element." Thanks! 2196816 1 webkit-bug-importer 2026-04-04 01:50:21 -0700 <rdar://problem/174069252> 2196817 2 ahmad.saleem792 2026-04-04 01:53:32 -0700 Pull request: https://github.com/WebKit/WebKit/pull/62027 2198111 3 ews-feeder 2026-04-08 14:55:24 -0700 Committed 310798@main (31e8f16d17b1): <https://commits.webkit.org/310798@main> Reviewed commits have been landed. Closing PR #62027 and removing active labels.