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We have an old on premise intranet site, the URL uses the format https://intranet.contoso.com/pages/default.aspx

The site is only accessible to internal users.

 

I've tried following guides online to add the intranet to teams using app studio, but I just get a blank page upon completion. Saying that I also tried changing the url to https://www.google.com to test but I got the same issue...

 

Am I doing something wrong?

 

Cheers,

www.000webhost.com