Allow specific apps to be opened in Microsoft Edge sidebar
Supported on: Microsoft Edge version 131, Windows 7 or later
Registry
Software\Policies\Microsoft\Edge Software\Policies\Microsoft\Edge Options
Software\Policies\Microsoft\Edge\EdgeSidebarAppUrlHostAllowList Description
Define a list of sites, based on URL patterns, that aren't subject to the 'EdgeSidebarAppUrlHostBlockList' (Control which apps cannot be opened in Microsoft Edge sidebar). If you don't configure this policy, a user can open any app in sidebar except the urls listed in 'EdgeSidebarAppUrlHostBlockList'. If you configure this policy, the apps listed in the allow list could be opened in sidebar even if they are listed in the block list. By default, all apps are allowed. However, if you prohibited apps by policy, you can use the list of allowed apps to change that policy. For detailed information about valid url patterns, see https://go.microsoft.com/fwlink/?linkid=2281313. Example value: https://www.contoso.com [*.]contoso.edu