Problem with IE11 and nested Modal Dialog after applying KB3008923

After applying windows update KB3008923, dialogArguments are 'undefined' when displaying over an existing modal.  For example, if you load a page with window.ShowModalDialog alone, the window.dialogArguments object works fine.  But if then call ShowModalDialog again from that modal window, the top-most window's dialogArguments are 'undefined'.

This all started after applying this windows update, and this logic is used in several places in our customer's website.  So obviously it is critical that it gets resolved, either by having the bug fixed, or a possible work-around.

Any ideas?  Is there a way to submit this bug to Microsoft?

 

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Last updated October 28, 2019 Views 15,893 Applies to:
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Update: A patch has been released.

Thank you for submitting this, and working diligently to help us understand the issue.

I opened a bug on this yesterday and we immediately had a band of engineers working to investigate the matter even further. We have identified which check-in likely caused the regression and are working towards a solution.

Thank you for your patience as we quickly work towards resolution.

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