Hi
We have created an outlook add in, with a task pane. When a user using Windows 10 version >= 1903 and Office 365 version >= 16.0.13530.20224 Then the outlook plugin by default will use Microsoft Edge as described here https://docs.microsoft.com/en-us/office/dev/add-ins/concepts/browsers-used-by-office-web-add-ins , this seems to cause an issue for us, when we are using older version of windows and the plugin is using IE everything works seamlessly. When we update and Edge is default browser then when we load the plugin it exits to an external browser and brings us to a Sharepoint online site (that is where we are hosting our UI). We think it might be something to do with SSO but is only happening when default browser is Edge.
Wondering is there anyway to make edge behave the same as IE and not open in an external browser or any workarounds we could apply for our usecase.
Any help would be appreciated.
Thanks