Bug 231078

Summary:	Invalid CSS <image> should be transparent
Product:	WebKit	Reporter:	Sam Sneddon [:gsnedders] <gsnedders>
Component:	Layout and Rendering	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	WebKit Local Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=206909

Description Sam Sneddon [:gsnedders] 2021-10-01 07:13:15 PDT

Per https://drafts.csswg.org/css-images-4/#invalid-image:

> In some cases an image is invalid, such as a <url> pointing to a resource that is not a valid image format or that has failed to load. An invalid image is rendered as a solid-color transparent image with no natural dimensions. However, invalid images can trigger error-handling clauses in some contexts. For example, an invalid image in list-style-image it is treated as none, allowing the list-style-type to render in its place. [CSS2]

This is the reason why bug 206909 occurred (we end up rendering the broken image icon over the star), rather than the -webkit-image-set() parsing change itself (which is what that bug reverted).

Comment 1 Radar WebKit Bug Importer 2021-10-08 07:14:17 PDT

<rdar://problem/84026868>

Comment 2 Simon Fraser (smfr) 2021-10-09 11:12:30 PDT

Dup of bug 203788

Comment 3 Sam Sneddon [:gsnedders] 2021-10-12 02:42:31 PDT


*** This bug has been marked as a duplicate of bug 203788 ***