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This was was cloned from bug 16980 as part of operation convergence. Originally filed: 2012-05-07 18:10:00 +0000 Original reporter: Addison Phillips <addison@lab126.com> ================================================================================ #0 Addison Phillips 2012-05-07 18:10:37 +0000 -------------------------------------------------------------------------------- 3.2.3.8 Embedding custom non-visible data with the data-* attributes http://www.w3.org/TR/html5/elements.html#embedding-custom-non-visible-data-with-the-data-attributes There is a note that reads: -- All attributes on HTML elements in HTML documents get ASCII-lowercased automatically, so the restriction on ASCII uppercase letters doesn't affect such documents. -- Later in the section there are several references to ASCII-lowercasing and ASCII-uppercasing operations. There is no discussion of how to handle non-ASCII Unicode values (the wisdom of any such appearing in this context is, of course, open). Default Unicode case folding might be a good idea here, though, if such values are expected to occur? ================================================================================ #1 Ian 'Hixie' Hickson 2012-05-08 00:41:27 +0000 -------------------------------------------------------------------------------- This is just for names, not values. Ideally there'd be no folding at all, it's just we're required to for legacy compat. ================================================================================ #2 Ian 'Hixie' Hickson 2012-05-10 17:54:28 +0000 -------------------------------------------------------------------------------- (I should probably make it clearer that this is for names, not values.) ================================================================================
Checked in as WHATWG revision r7425. Check-in comment: Clarification. http://html5.org/tools/web-apps-tracker?from=7424&to=7425