[1]
[CITE[Google Custom Search Engine - Site search and more]] ([TIME[2008-06-08 00:32:07 +09:00]] 版)
[PRE(HTML old example code)[
]PRE]
[2] [CITE[Re: Context help in Web Forms]] ([[Ian Hickson]] 著, [TIME[2008-08-05 20:44:13 +09:00]] 版)
>I agree that not constraining data-* will lead to a validation "hole"
where people can't check that their data is matching their presumed
schema, but I think the right solution to this is for validators to offer
out-of-band ways to specify schemas for data-* attributes, not for the
spec to constrain the values, IMHO.