Failed to start -- unable to connect to remote server
I registered for
cloud.sagemath.com
, created a test project and created a Sage notebook. It took one second to load and I was able to start typing.I then created an IPython notebook and I read
Opening...
for a long time. Finally, I get the error messageFailed to start -- unable to connect to remote server
on the top right of the screen.I tried it with Firefox and Chromium (both from a Linux machine).
What did I do wrong? How can I get a more detailed error message?