[Bug 13469] Enable Web page authors to override text/IRI content

http://www.w3.org/Bugs/Public/show_bug.cgi?id=13469

--- Comment #6 from Manu Sporny <msporny@digitalbazaar.com> 2011-08-21 18:45:28 UTC ---
> This is false. If it was possible for spiders to do this kind of reasoning in
> the first place, then spiders wouldn't need microdata. Indeed if tools were to
> decide whether or not to trust the microdata in a page based on non-microdata
> on the page, that tool would be in violation of the microdata processing rules.

I don't understand why you wrote the first and second sentence above - please
elaborate on what you mean.

The third sentence seems to be a layer violation - what a higher-level
application does with Microdata and non-Microdata on the page has nothing to do
with the Microdata processing rules. I don't remember reading anything that
limited what a higher-level application does with the Microdata in a page in
the Microdata spec. Do you have a link to that language?

>> 2. It would allow debuggers, like the one built into Google Chrome, to
>> highlight the sections of a page that particular pieces of data came from 
>> down to the exact span of text on the page.
>
> The piece of data in the proposal would come from the attribute, not the
> element's contents. It certainly would allow a development tool to highlight
> the (possibly unrelated) contents of the element that happened to have the
> attribute, but that's not especially more useful than highlighting a <meta>
> element immediately before that same content, which is possible today.

Having a WYSIWYG editor that highlighted the exact text that is associated with
the word "fourteen" and the data "14" retrieved from the page would be helpful.
Having a spider understand that the on-page data doesn't deviate from the
"hidden" data in the page would also be useful. The fact remains that <meta>
does not allow you to do that.

The resolution does not address my concerns, but I will not be pursuing the
matter further as this shortcoming has been raised repeatedly and the answer
has always been the same.

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Received on Sunday, 21 August 2011 18:45:33 UTC