nbgrade formgrade 404 not found

[randy3k]

Hi,

I have a problem of opening formgrade after autograding the assignments. I checked that the assignment is in the autograde folder.

(jupyter)-sts437$ nbgrader formgrade
[FormgradeApp | INFO] Proxying /hub/nbgrader/sts437 --> http://localhost:5005
[FormgradeApp | INFO] Serving MathJax from /opt/conda/lib/python3.5/site-packages/notebook/static/components/MathJax/MathJax.js
[FormgradeApp | INFO] Form grader running at http://localhost:5005/
[FormgradeApp | INFO] Use Control-C to stop this server
[FormgradeApp | WARNING] 404 GET / (127.0.0.1) 1.61ms

and this is my nbgrader_config.py

c = get_config()

c.NbGrader.course_id = 'sts437'
c.FormgradeApp.authenticator_class = u'nbgrader.auth.hubauth.HubAuth'
c.FormgradeApp.port = 5005
c.HubAuth.proxy_token = u'xxxxxxxxxxxx'
c.HubAuth.hubapi_token = u'u'xxxxxxxxxxxx'
c.HubAuth.hub_base_url = u'https://www.example.com'
c.HubAuth.notebook_url_prefix = u'/home/randy3k/nbgrader/sts437'
c.HubAuth.graders = ['randy3k']

c.NbGrader.db_assignments = [dict(name="hw1")]
c.NbGrader.db_students = [
    dict(id="shingx1")
]

Do you have an idea why it does not work?

[randy3k]

Solved. I shouldn't access it via localhost, but https://www.example.com/hub/nbgrader/sts437