DNN 7.2 will not Validate against HTML 5 for a number of reasons.
Run any DNN 7 site through http://validator.w3.org/ and you'll get a number of errors.
Bad value X-UA-Compatible for attribute http-equiv on element meta.
<head id="Head"><meta http-equiv="X-UA-Compatible" content="IE=edge" /><title>
Bad value Content-Script-Type for attribute http-equiv on element meta.
…pt" http-equiv="Content-Script-Type" />
Bad value Content-Style-Type for attribute http-equiv on element meta.
…css" http-equiv="Content-Style-Type" />
Bad value COPYRIGHT for attribute name on element meta: Keyword copyright is not registered.
COPYRIGHT CONTENT HERE" />
Bad value RESOURCE-TYPE for attribute name on element meta: Keyword resource-type is not registered.
…e="RESOURCE-TYPE" content="DOCUMENT" />
Bad value DISTRIBUTION for attribute name on element meta: Keyword distribution is not registered.
…name="DISTRIBUTION" content="GLOBAL" />
Bad value PAGE-ENTER for attribute http-equiv on element meta.
The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.
it was incorrectly set to private, I've fixed it now
Issue is marked as a duplicate yet we're saying it's able to be closed as complete.
Changing so we have marked issue with the correct Resolution
Cathal, is Content only issue, if a understand right.
Or it reproducable on Dnn Platform ?
Sacha, that's where the problem was found, but the issue is in clientAPI - "disable auto complete on hidden field which save dnn variables."