Bug 76992

Summary:	Any @namespace rules must follow all @charset and @import rules and precede all other non-ignored at-rules and rule sets in a style sheet.
Product:	WebKit	Reporter:	Eric Seidel (no email) <eric>
Component:	CSS	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED CONFIGURATION CHANGED
Severity:	Normal	CC:	ahmad.saleem792, ap, bdakin, hyatt
Priority:	P2
Version:	528+ (Nightly build)
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=86142 https://bugs.webkit.org/show_bug.cgi?id=165213
Bug Depends on:
Bug Blocks:	76198

Description Eric Seidel (no email) 2012-01-25 02:15:42 PST

Any @namespace rules must follow all @charset and @import rules and precede all other non-ignored at-rules and rule sets in a style sheet. 

According to IETC WebKit is the only engin which gets this wrong (is too lenient on when you can use @namespace):
http://samples.msdn.microsoft.com/ietestcenter/css3/namespaces/syntax-021.xml

I'm not sure how much this matters in practice.

Comment 1 Alexey Proskuryakov 2012-01-25 11:22:16 PST

Weird, we had an effort to ensure such restrictions right some time ago. Apparently, this case was missed.

Comment 2 Ahmad Saleem 2022-09-02 14:29:53 PDT

Safari Technology Preview 152 pass all these test cases now:

https://wpt.fyi/results/css/css-namespaces?label=master&label=experimental&aligned&view=subtest&q=css%20namespace

I am going to mark this as "RESOLVED CONFIGURATION CHANGED". Thanks!

Comment 3 Alexey Proskuryakov 2022-09-02 18:30:12 PDT

We have ietestcenter/css3/namespaces/syntax-021.xml in the WebKit repository, and it passes.