[Webkit-unassigned] [Bug 74815] Non-BMP Unicode character codes aren't properly unescaped in CSS

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=74815





--- Comment #12 from Mathias Bynens <mathias at qiwi.be>  2012-01-24 08:15:10 PST ---
Note that this also affects `document.querySelector` and `document.querySelectorAll`.

Failing test case:

data:text/html;charset=utf-8,%3C!DOCTYPE%20html%3E%3Ctitle%3EMothereffing%20CSS%20escapes%20example%3C%2Ftitle%3E%3Cstyle%3Epre%7Bbackground%3A%23eee%3Bpadding%3A.5em%7Dp%7Bdisplay%3Anone%7D%23ab%5Ca9%20de%5C1d306%20fg%7Bdisplay%3Ablock%7D%3C%2Fstyle%3E%3Ch1%3E%3Ca%20href%3D%22http%3A%2F%2Fmothereff.in%2Fcss-escapes%23ab%25C2%25A9de%25F0%259D%258C%2586fg%22%3EMothereffing%20CSS%20escapes%3C%2Fa%3E%20example%3C%2Fh1%3E%3Cpre%3E%3Ccode%3Eab%C2%A9de%F0%9D%8C%86fg%3C%2Fcode%3E%3C%2Fpre%3E%3Cp%20id%3D%22ab%C2%A9de%F0%9D%8C%86fg%22%3EIf%20you%20can%20read%20this%2C%20the%20escaped%20CSS%20selector%20worked.%20%3C%2Fp%3E%3Cscript%3Edocument.getElementById('ab%C2%A9de%F0%9D%8C%86fg').innerHTML%20%2B%3D%20'%20%3Ccode%3Edocument.getElementById%3C%2Fcode%3E%20worked.'%3Bdocument.querySelector('%23ab%5C%5Ca9%20de%5C%5C1d306%20fg').innerHTML%2B%3D'%20%3Ccode%3Edocument.querySelector%3C%2Fcode%3E%20worked.'%3C%2Fscript%3E

(In reply to comment #11)
> This is a tokenizer level issue (AP thanks for CC'ing me). Would not be much trouble to fix it in the custom written tokenizer after it is landed, just adding some extra parsing to the escape sequences.

Out of curiosity, when will the custom-written tokenizer land (if it hasn’t already)? Any bug tickets I can subscribe to?

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