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Specification: http://www.whatwg.org/specs/web-apps/current-work/multipage/syntax.html Multipage: http://www.whatwg.org/C#optional-tags Complete: http://www.whatwg.org/c#optional-tags Referrer: http://www.codeproject.com/Questions/490253/Whatplusdoesplusthispluserrrorplusmean Comment: conform to DTD Posted from: 114.142.136.74 User agent: Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Firefox/31.0
*** This bug has been marked as a duplicate of bug 26808 ***