AuthSession and Active Directory Federation Services (ADFS) : Not Found Error After Signing In

Hi all,

First and foremost I want to thank the Expo team for creating such a great toolset.

I am attempting to use the AuthSession in tandem with Active Directory Federation Services (ADFS) to integrate single sign on.

I have created a relying party trust on ADFS enlisting the redirectURL, in my case it is

The system web browser opens to reveal my company’s ADFS single sign-on page. Upon signing in, I would expect to be redirected back to the App, but instead a “Not Found” page is rendered.

I have searched the forums for this and already tried solutions such as running expo start --tunnel, but to no avail. As a side note, I have an app scheme set on app.json and I am on Expo SDK 33.

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