Starting around last Wednesday or Thursday the link to the W3C Validator doesn't work correctly when trying to validate local files.
I noticed it first with trying to validate HTML 5 documents (which have not caused a problem before, but it is also failing with XHTML 1.0.
This is using the button for check the markup of HTML on the Tools tab of the menu bar.
What I'm getting is:
Status: 403 Forbidden Vary: Referer Content-type: text/html
Sorry! This document can not be checked.
No User-Agent header found!
The documents that fail as local work fine when tested on the web and have all validated correctly (meaning the header is unchanged from when previous validations) in the past.
Has W3C changed something that Tools can't access now??
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