1531888 - If clip-path IRI is missing, Firefox does not ignore it (at least for the purposes of mouse-interactions).

Status: RESOLVED FIXED

(Core :: SVG, defect, P2)

Description

[Thomas Wisniewski [:twisniewski][PTO August 18-22]]

Attachment: test.html

According to SVG 1.1 and 2:

If the IRI reference is not valid (e.g it points to an object that doesn't exist or the object is not a ‘clipPath’ element) the ‘clip-path’ property must be treated as if it hadn't been specified.

However, as per the attached test-case, Firefox (unlike Blink, Edge, and WebKit) will ignore mouseover events on the SVG entirely if a clip-path is specified, but does not actually exist.

This is breaking important hover-effects on 24timezones.com, as reported at https://webcompat.com/issues/26639

Comment 1

[Robert Longson [:longsonr]]

Sounds like bug 1509394. Jonathan was working on something there which is why that bug isn't closed I think.

Comment 2

[Daniel Holbert [:dholbert]]

Yeah, see bug 1509394 comment 12 in particular (which hints at there being something not-quite-fixed there).

Comment 3

[Jonathan Watt [:jwatt]]

Clearing this needinfo since it's essentially a dupe of the needinfo over in bug 1509394.

Comment 4

[Firefox Bug Husbandry Bot]

Migrating Webcompat whiteboard priorities to project flags. See bug 1547409.

Comment 5

[Firefox Bug Husbandry Bot]

See bug 1547409. Migrating whiteboard priority tags to program flags.

Comment 6

[Robert Longson [:longsonr]]

Attachment: Bug 1531888 - ignore invalid clip-path references when hit testing

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/cf850a76ee5f
ignore invalid clip-path references when hit testing r=emilio

Comment 8

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/34847 for changes under testing/web-platform/tests

Comment 9

[Cristina Cozmuta (:CrissCozmuta)]

https://hg.mozilla.org/mozilla-central/rev/cf850a76ee5f

Comment 10

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot