showModelessDialog() Silverlight not working in IE 11 on Windows 10

Not reproducible Issue #7128216


Travis H.
Apr 6, 2016
This issue is public.
Found in
  • Internet Explorer
Found in build #
Reported by 1 person

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Steps to reproduce

Windows 10 using Internet Explorer 11 (Version: 11.162.10586.0, Update Versions: 11.0.29)
showModelessDialog() (Silverlight does NOT work)
showModalDialog() (Silverlight DOES work)
Windows 7 using Internet Explorer 11 (Version: 11.0.9600.18230, Update Versions: 11.0.29)
showModelessDialog() (Silverlight DOES work)
showModalDialog() (Silverlight DOES work)


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    Comments and activity

    • I had opened this on and Brad from the MS Edge team responded closing the ticket as not repro, and stated that Showmodless dialog works as expected. I am just looking for some more clarification.

      We have an app that is built on Silverlight that depends on this feature. Is Microsoft’s stance that we will need to rebuild our entire app to work in a Windows 10 environment?

    • Microsoft Edge Team

      Changed Assigned To to “Christian F.”

    • Microsoft Edge Team

      Changed Assigned To from “Christian F.” to “Brad E.”

      Changed Status to “Not reproducible”

    • Hello Travis,

      We are not working on IE  feature bugs any longer unless they are security related. When I tested that specific function you provided it did work as I had expected(I ran it in the console). Regardless of whether that works or not - we are not addressing IE feature bugs any longer through this portal (unless security related).

      If you require additional assistance I would suggest opening a support incident where a support engineer can assist you and answer your questions. This website is used for product feedback and not support.

      For support please visit If you have additional product specific feedback please feel free to post them to us here.

      All the best,

      The MS Edge Team

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