[Webkit-unassigned] [Bug 75395] New: Erroneous reloading of <object> data

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=75395

           Summary: Erroneous reloading of <object> data
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.7
            Status: UNCONFIRMED
          Severity: Critical
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: david.work at pobox.com


When using <object type='text/html'>, the HTML content is repeatedly 'reloaded' from the URL specified in the data attribute when the CSS display property is toggled between none and block.

For example, it is common to implement tabbed-pane widgets (such as with jQuery) where clicking tab labels shows or hides particular tab pane contents by manipulating the CSS display property via Javascript.
However, if such a child component (in a tab pane, for example) contains an <object type='text/html'> element, WbKit repeatedly re-loads the content from the specified data URL whenever the element is shown.

Hence, for example, if a tab pane is displaying an embedded web-page using <object>, the navigation state - such as the current URL - is lost upon selecting another tab and then returning to the tab in question.

The correct behavior (not to reload the content unless the data attribute is modified via DOM) is implemented by Firefox8 and IE9.  This erroneous behavior is also displayed by Chrome17(on Mac) - and Safari 5.1.1 of course.

This use of <object type='text/html'> should behave similar to <iframe> in this respect.

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