[whatwg] Custom attributes [was: Adding a src attribute to all elements]
Simetrical+w3c at gmail.com
Wed Nov 4 06:25:58 PST 2009
On Wed, Nov 4, 2009 at 5:57 AM, Markus Ernst <derernst at gmx.ch> wrote:
> While experimenting with the validator (at validator.w3.org), I found that
> it does actually not complain about <h1 src="whatever.gif">. Thus, Tab's
> example would be perfectly valid. The validator even seems to accept any
> custom attribute name on any element - this is said to be valid HTML5:
> . . .
> Is this a mistake in the validator, due to its experimental state, or is
> there something missing in the spec?
A mistake in the validator. http://validator.nu/ gives the correct
answer: it's invalid. You need to prefix custom attributes with
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