Error 500 when a user opens a shared link to a notebook

[rafaysalim]

I followed your instructions and installed jupyterhub-share-link but I keep getting 500 error when I open a link to a shared notebook. I would appreciate any suggestions. Thank you.

jupyterhub 1.1.0
jupyterhub-share-link 0.1.1
jupyterhub-share-link-labextension v0.3.0

Here is the error in jupyterhub_share_link.log (the token and hostname are masked below):

[E 200211 14:03:55 web:1788] Uncaught exception GET /hub/services/share-link/open?token=*************************** (127.0.0.1) HTTPServerRequest(protocol='http', host='*********', method='GET', uri='/hub/services/share-link/open?token=**************************', version='HTTP/1.1', remote_ip='127.0.0.1') Traceback (most recent call last): File "/opt/conda/lib/python3.6/site-packages/tornado/web.py", line 1699, in _execute result = await result File "/opt/conda/lib/python3.6/site-packages/jupyterhub_share_link/run.py", line 195, in get resp = await AsyncHTTPClient().fetch(req) tornado.httpclient.HTTPClientError: HTTP 404: Not Found [E 200211 14:03:55 web:2246] 500 GET /hub/services/share-link/open?token=**************************************