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db1080's avatar
db1080
Brass Contributor
Nov 30, 2020

IE to Edge 87+ redirection issues

We've set both the RedirectSitesFromInternetExplorerRedirectMode and the RedirectSitesFromInternetExplorerPreventBHOInstall policies to prepare for the release of Edge 87, as we still have a large population of folks who require IE as their default. Now that 87 stable is here, we're finding that the settings don't work.

 

First RedirectSitesFromInternetExplorerPreventBHOInstall only appears to work if it's done on the Computer Configuration in the ADMX, not the User Configuration. I've double-checked and I don't see this listed in the documentation anywhere.

 

Second, the RedirectSitesFromInternetExplorerRedirectMode policy doesn't work at all, either in the User or the Computer ADMX configuration. The setting shows "Never" correctly in the Edge > Settings > Default Browser UI. But the value of the setting is ignored and IE redirects anyway. If it's not set by policy and I manually toggle it to Never, IE correctly follows the setting and does not redirect.

    • db1080's avatar
      db1080
      Brass Contributor

      Kelly_Y

      Yes, we followed those directions. We implemented both policies prior to the Edge 87 release. We generally prefer to add settings to the ADMX User Configuration, since it makes exceptions easier to manage. While the RedirectSitesFromInternetExplorerPreventBHOInstall policy appears in the User Config, it looks like it fails because the setup doesn't detect the setting unless it's set in the Computer Config. This isn't documented in the release notes or the ADMX itself, but it's logical since the installer/updater typically runs as system.

       

      We also added the RedirectSitesFromInternetExplorerRedirectMode policy, again before the 87 release, just to cover our bases. Remember, we had no way to fully test this prior to the 87 release since we're domain-joined. While "Never" is displayed correctly in Edge settings, it doesn't work. Further digging shows that the HKEY_CURRENT_USER\Software\Microsoft\Edge\IEToEdge | RedirectionMode key, which is what the BHO itself uses, is not being created nor set to 0 when the policy is read by Edge. If the BHO doesn't find the key, the default is to redirect. If I manually create the RedirectionMode key and then re-launch Edge, it correctly follows the policy and sets RedirectionMode to 0.

       

      • Kelly_Y's avatar
        Kelly_Y
        Icon for Microsoft rankMicrosoft

        db1080 Thanks for the additional information!  I've reached out to our team and we will follow up with updates or additional questions.  

         

        -Kelly

  • mindst's avatar
    mindst
    Iron Contributor
    Hi

    I guess these folks that require IE as default uses several websites (finite number) that works in IE only. I suggest you to explore IE mode feature of new edge. You will be able to add these websites to site list and you will no longer need to cope with these RedirectFromInternetExplorer policies

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