Box oauth2: Invalid grant_type parameter or parameter missing
I don't know what I do wrong, but everytime I tried to obtain the token (after user authentication of course), the result is always Invalid grant_type parameter or parameter missing Possibly related to Box API always returns invalid grant_type parameter on obtaining access token Here is my fiddler result: POST https://api.box.com/oauth2/token HTTP/1.1 Host: api.box.com Content-Length: 157 Expect: 100-continue Connection: Keep-Alive grant_type=authorization_code&code=nnqtYcoik7cjtHQYyn3Af8uk4LG3rYYh&client_id=[myclientId]&client_secret=[mysecret] Result: HTTP/1.1 400 Bad Request Server: nginx