IE to Edge 87+ redirection issues

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.