RESOLVED FIXED 66270
WebKit returns false positive when detecting 'space' and 'round' values for background-repeat 
https://bugs.webkit.org/show_bug.cgi?id=66270
Summary WebKit returns false positive when detecting 'space' and 'round' values for b...
Louis Lazaris
Reported 2011-08-15 18:28:58 PDT
It seems that no WebKit browser supports the values "space" and "round" for "background-repeat", yet when testing for these values using JavaScript, WebKit gives a false positive. The URL (http://jsbin.com/uzesun/3/) is a test page using an extention to Modernizr to add support. Only Opera and IE9/10 should return 'true', but WebKit does as well. Safari 4 does not return true, so it seems that this is a problem in later versions of WebKit. Chrome 8 returns true, but I did not test in anything earlier than that.
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fantasai
Comment 1 2011-08-16 08:58:53 PDT
This is a spec violation: http://www.w3.org/TR/CSS/#partial Simon, can you inform the layout reviewers to check for this kind of issue when reviewing patches for CSS support, in general? This kind of bug creates a pretty serious forwards/backwards compatibility problem since it prevents the use of the forwards-compat parsing rules to give fallback.
Simon Fraser (smfr)
Comment 2 2011-08-16 09:56:57 PDT
This is work in progress via bug 27570. We can't guarantee that WebKit nighties won't be in this state, but a shipping browser should never be.
Louis Lazaris
Comment 3 2012-04-15 22:17:18 PDT
Is anyone dealing with this bug? Chrome 18.x and Canary (20.x) are still spitting out a false positive when these values are feature detected. This is a major roadblock to using this feature because it prevents Chrome from properly displaying a fallback or polyfill since it thinks it works.
Andrei Parvu
Comment 4 2013-09-24 02:08:34 PDT
The repeat round and space were fixed here: https://bugs.webkit.org/show_bug.cgi?id=119080 and here: https://bugs.webkit.org/show_bug.cgi?id=119324.
Simon Fraser (smfr)
Comment 5 2022-08-14 20:55:48 PDT
`space` and `round` are correctly supported now.
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