16516 2012-03-25 19:32:13 +0000 Validator does not recognize the DOCTYPE legacy string 2012-12-08 12:47:03 +0000 1 1 1 Unclassified HTML Checker General unspecified PC All CLOSED FIXED http://validator.w3.org/nu/?doc=data%3Atext%2Fhtml%2C%253C!DOCTYPE%2520html%2520SYSTEM%2520%27about%3Alegacy-compat%27%253E%253Ctitle%253E%253C%2Ftitle%253E&showsource=yes P2 normal --- 1 xn--mlform-iua mike+validator hsivonen mike xn--mlform-iua www-validator-cvs oldest_to_newest 66027 0 xn--mlform-iua 2012-03-25 19:32:13 +0000 The validator does not accept the HTML5 legacy doctype: http://www.w3.org/TR/html5/syntax.html#doctype-legacy-string There are two variants of this doctype: <!DOCTYPE html SYSTEM "about:legacy-compat"> <!DOCTYPE html SYSTEM 'about:legacy-compat'> I would support putting out a warning - e.g. one could just quote what the spec says: ]] The DOCTYPE legacy string should not be used unless the document is generated from a system that cannot output the shorter string. [[ But it does not make sense to stamp is as invalid, like the validator currently does, when the spec says that it is valid. 66028 1 mike 2012-03-26 03:15:31 +0000 The cause of this is in the HTML parser code, so I recommend raising a bug for it against the HTML parser component at http://bugzilla.validator.nu The current HTML parser code actually does specifically recognize "about:legacy-compat". It's just that it also specifically emits an error message for it instead of a warning, or instead of emitting nothing. I'm not sure why Henri has it doing that, but given the fact the spec says it's not an error, it seems like it should not at least not be emitting an error. My vote would be for it to emit a specific warning saying, "The DOCTYPE legacy string should not be used unless the document is generated from a system that cannot output <!DOCTYPE html>." 66031 2 xn--mlform-iua 2012-03-26 03:36:45 +0000 (In reply to comment #1) > The cause of this is in the HTML parser code, so I recommend raising a bug for > it against the HTML parser component at http://bugzilla.validator.nu Done: http://bugzilla.validator.nu/show_bug.cgi?id=916 74212 3 hsivonen 2012-09-21 13:09:45 +0000 https://hg.mozilla.org/projects/htmlparser/rev/98b4f408aa67 Needs Mike to redeploy at the W3C.