Error: malformed auth code

[Inrego]

The request to get an auth code fails with the error:

{ "error": "invalid_grant", "error_description": "Malformed auth code." }

Posts on Stack overflow suggests that the code needs to be url decoded before being sent. And yes, sure enough.. I can see in the request part, that the code contain %2F which should be converted to /.

[Vyrastas]

@YigitUyan is this something you can check? I don't recall this being a problem before.

[Inrego]

It worked on my desktop PC, but not on my phone (Pixel 6 Pro).
I didn't check if it's just a case of coincidence that the token i got at the time i tried on desktop didn't include any special characters

[Vyrastas]

I believe the authorization code will always be in that general format with the / in it.

I don't know if this was ever tested on any mobile devices, the sample is primarily for desktop use.