[Webkit-unassigned] [Bug 111307] div.classList.add('a', 'a') creates duplicate entries

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=111307


Andrea Giammarchi <andrea.giammarchi at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |andrea.giammarchi at gmail.com




--- Comment #5 from Andrea Giammarchi <andrea.giammarchi at gmail.com>  2013-10-08 18:42:41 PST ---
confirmed and fixed/verified through the test 74 in here: http://webreflection.github.io/dom4/test/

The check is basically this one:

div.classList.add('a', 'b', 'a');
assert(div.className === 'a b');

the test against to verify it works is the one showed here:
div.classList.add('a', 'a');
assert(div.className === 'a');

Very weird this bus hasn't been confirmed yet since it's clearly stated about being unique tokens.

What would be the reason to have twice the same class otherwise, having an `!important` effect ?

Thanks for fixing this, I don't really want to rely on JS to fix such simple CSS classList core gotcha.

Best Regards

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