120903 2013-09-06 15:48:11 -0700 ASSERTION FAILED: mode & UseTransforms with a fixed-position <svg> 2017-02-08 10:30:27 -0800 1 1 1 Unclassified WebKit SVG 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 31278 InRadar P2 Normal --- 1 jeffrey+webkit webkit-unassigned krit rhodovan.u-szeged sabouhallawa simon.fraser thorton zimmermann oldest_to_newest 925884 0 210807 jeffrey+webkit 2013-09-06 15:48:11 -0700 Created attachment 210807 Repro An SVG element with position: fixed will trigger an assertion (mode & UseTransforms) in RenderSVGRoot::mapLocalToContainer(const WebCore::RenderLayerModelObject *, WebCore::TransformState &, MapCoordinatesFlags, bool *) const when running a debug build. A simple repro is attached. <rdar://problem/14703176> 925897 1 thorton 2013-09-06 16:05:37 -0700 IIRC we (Simon and I) decided that the assertion didn’t actually make any sense, but I don’t remember all the logic at the moment. 926166 2 krit 2013-09-07 01:18:17 -0700 (In reply to comment #1) > IIRC we (Simon and I) decided that the assertion didn’t actually make any sense, but I don’t remember all the logic at the moment. Hm, I agree. It makes sense for inner SVG elements but not for outer SVG elements (SVGRoot is always the outer SVG element). Looks like the assertion is wrong here. Just a question for understanding. The comment assumes that the mode (isFixed) comes from the content. I would assume that the mode is from the current renderer. Which is true? If it is the latter, we can remove the assertion. 937647 3 jeffrey+webkit 2013-10-08 13:22:40 -0700 *** Bug 117925 has been marked as a duplicate of this bug. *** 1274425 4 sabouhallawa 2017-02-08 10:30:27 -0800 *** This bug has been marked as a duplicate of bug 31278 *** 210807 2013-09-06 15:48:11 -0700 2013-09-06 15:48:11 -0700 Repro svg-fixed.html text/html 36 jeffrey+webkit PHN2ZyBzdHlsZT0icG9zaXRpb246IGZpeGVkOyI+PC9zdmc+