This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
The codebase attribute of the HTML object element must be used to the resolve relative URI that may appear in the data attribute: http://www.w3.org/TR/html401/struct/objects.html#edef-OBJECT The mobileOK Checker does not handle this case, and always resolves relative URIs against the base URI of the HTML document.