unreliable onedrive login

[ciis0]

Preflight Checklist

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Describe the bug

Initial OneDrive login works fine, but internal refresh does not seem to work reliably.

Especially for the "Open Existing Diagram" from initial dialog (Screenshot 1) the authentication seems to be buggy

To Reproduce
Steps to reproduce the behavior:
0. ensure you have set inlinePicker=0, e.g. using https://app.diagrams.net?inlinePicker=0

1. drawio should not be logged in to OneDrive yet (i.e. show "choose storage", screenshot 2)
2. login to OneDrive now, observe login and "Open Existing Diagram" works fine
3. reload the page
4. try "Open Existing Diagram", sometimes this does not work (screenshot 4)
5. reload again
6. try "Open Existing Diagram", as far as i can tell this reliably does not work (also screenshot 4).

Expected behavior

the "Open Existing Diagrams" button should work reliably.

Screenshots

Screenshot 1:

Screenshot 2:

Screenshot 3:

Screenshot 4:

draw.io version (In the Help->About menu of the draw.io editor):

• draw.io version 24.8.4

Desktop

• OS: Windows
• Browser Firefox 132.0, Edge 130.0.2849.68

I tested the problem in incognito/private mode with all browser extensions switched off, write "yes" below:

• yes.

Additional context

it seems that depending on how to onedrive picker is started, it seems a different set of scopes (also in different format?) is requested and rejected (using developer tools network tab and the "referrer" of the login page because I just can't hit f12 fast enough to get the initial request :D)

a successful login seems to request these scopes:

profile openid https://graph.microsoft.com/User.Read https://graph.microsoft.com/Files.Read.All

while i see the following scopes during initial login:

user.read files.readwrite.all sites.read.all offline_access