Bug 211617

Summary: CSS filter property does not work with inlined SVG
Product: WebKit Reporter: naktinis
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: ahmad.saleem792, ap, bfulgham, dino, ian, rniwa, sabouhallawa, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: Safari Technology Preview   
Hardware: Mac   
OS: macOS 10.15   
See Also: https://bugs.webkit.org/show_bug.cgi?id=261806
Attachments:
Description Flags
Rendering examples none

Description naktinis 2020-05-08 02:03:30 PDT 
Created attachment 398842 [details]
Rendering examples

It is possible to use:

filter: url(#svg-filter-desaturate);

but not:

filter: url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%3E%3Cfilter%20id%3D%22desaturate%22%3E%3CfeColorMatrix%20type%3D%22saturate%22%20values%3D%220%22/%3E%3C/filter%3E%3C/svg%3E#desaturate);
}

The use case this would enable is to define filters inside CSS stylesheets. This would give developers access to a very powerful filter system they wouldn't have otherwise. For example, you could "colorize" with feColorMatrix.

Works on Firefox 76 and Chrome 81.

Here's a full example:
https://codepen.io/foobarquux/pen/JjddKZw
Comment 1 Radar WebKit Bug Importer 2020-05-08 15:46:10 PDT 
<rdar://problem/63039570>
Comment 2 Simon Fraser (smfr) 2020-05-11 16:59:32 PDT 
Probably RenderSVGInline::requiresLayer() const final { return false; }
Comment 3 naktinis 2020-09-17 10:40:53 PDT 
Simon Fraser, do you think this could be an easy fix?
Comment 4 Ahmad Saleem 2022-08-07 05:58:24 PDT 
I am able to reproduce this bug in Safari 15.6 on macOS 12.5 using attached test case and it does show these difference compared to other browsers:

Desaturate, encoded as base64 ----> RED

Desaturate, encoded with "escape()" ----> RED

Turn white to green, encoded with "escape()" ---> Missing completely.

Just wanted to update latest testing results. Thanks!