This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
This is a recent regression. While using the API with: curl -sF "uploaded_file=@index.html;type=text/html" -F output=json http://validator.w3.org/check I get an invalid JSON reponse: { "url": "index.html", "messages": [ { "message": , "messageid": "html5", "explanation": " <p class=\"helpwanted\">\n <a\n href=\"feedback.html?uri=;errmsg_id=html5#errormsg\"\n\ttitle=\"Suggest improvements on this error message through our feedback channels\" \n >✉</a>\n </p>\n", "type": "info" }, ... Note that "message": is missing a value. In addition, I also get the same extra headers mentioned in Bug 29315, but I've omitted them from this output.