Esta es un poco mas sencilla que la de Facebook, no estoy teniendo problemas con la validación de URL, pero si con el redirecciona a Django.
2021-02-03T13:41:13.185972+00:00 app[web.1]: ERROR 2021-02-03 08:41:12 Internal Server Error: /complete/google-oauth2/
2021-02-03T13:41:13.186001+00:00 app[web.1]: Traceback (most recent call last):
2021-02-03T13:41:13.186002+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/django/core/handlers/base.py", line 149, in get_response
2021-02-03T13:41:13.186003+00:00 app[web.1]: response = self.process_exception_by_middleware(e, request)
2021-02-03T13:41:13.186003+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/django/core/handlers/base.py", line 147, in get_response
2021-02-03T13:41:13.186004+00:00 app[web.1]: response = wrapped_callback(request, *callback_args, **callback_kwargs)
2021-02-03T13:41:13.186005+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
2021-02-03T13:41:13.186005+00:00 app[web.1]: response = view_func(request, *args, **kwargs)
2021-02-03T13:41:13.186009+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
2021-02-03T13:41:13.186009+00:00 app[web.1]: return view_func(*args, **kwargs)
2021-02-03T13:41:13.186099+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/apps/django_app/utils.py", line 51, in wrapper
2021-02-03T13:41:13.186100+00:00 app[web.1]: return func(request, backend, *args, **kwargs)
2021-02-03T13:41:13.186101+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/apps/django_app/views.py", line 28, in complete
2021-02-03T13:41:13.186101+00:00 app[web.1]: redirect_name=REDIRECT_FIELD_NAME, *args, **kwargs)
2021-02-03T13:41:13.186102+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/actions.py", line 43, in do_complete
2021-02-03T13:41:13.186102+00:00 app[web.1]: user = backend.complete(user=user, *args, **kwargs)
2021-02-03T13:41:13.186103+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/backends/base.py", line 41, in complete
2021-02-03T13:41:13.186103+00:00 app[web.1]: return self.auth_complete(*args, **kwargs)
2021-02-03T13:41:13.186104+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/utils.py", line 229, in wrapper
2021-02-03T13:41:13.186104+00:00 app[web.1]: return func(*args, **kwargs)
2021-02-03T13:41:13.186104+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/backends/oauth.py", line 387, in auth_complete
2021-02-03T13:41:13.186105+00:00 app[web.1]: *args, **kwargs)
2021-02-03T13:41:13.186106+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/utils.py", line 229, in wrapper
2021-02-03T13:41:13.186106+00:00 app[web.1]: return func(*args, **kwargs)
2021-02-03T13:41:13.186107+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/backends/oauth.py", line 392, in do_auth
2021-02-03T13:41:13.186107+00:00 app[web.1]: data = self.user_data(access_token, *args, **kwargs)
2021-02-03T13:41:13.186109+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/backends/google.py", line 73, in user_data
2021-02-03T13:41:13.186110+00:00 app[web.1]: 'alt': 'json'
2021-02-03T13:41:13.186110+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/backends/base.py", line 229, in get_json
2021-02-03T13:41:13.186110+00:00 app[web.1]: return self.request(url, *args, **kwargs).json()
2021-02-03T13:41:13.186111+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/social/backends/base.py", line 225, in request
2021-02-03T13:41:13.186111+00:00 app[web.1]: response.raise_for_status()
2021-02-03T13:41:13.186112+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/site-packages/requests/models.py", line 940, in raise_for_status
2021-02-03T13:41:13.186112+00:00 app[web.1]: raise HTTPError(http_error_msg, response=self)
2021-02-03T13:41:13.186114+00:00 app[web.1]: HTTPError: 403 Client Error: Forbidden for url: https://www.googleapis.com/plus/v1/people/me?alt=json&access_token=************************************