JWT Mode not working

[NilsBaumgartner1994]

As i am trying to get the directus_refresh_token via a jwt (for localhost development or mobile app) it is not possible for me to optain it.

See:
#1981

1. Call SSO Provider using https://mydomain.com/projectname/auth/sso/google?mode=jwt&redirect_url=https://myvueappdomain.com/callback

Now Step 2 is not working.
2. Getting https://myvueappdomain.com/callback?request_token=xxxxxxx. I got that token