It works great in Firefox. I don't have time currently to debug this, but in Chrome, it doesn't show any cells if I create a new notebook. My ipython master is a3c02d8.
What version of Chrome and Tornado are you using? Unfortunately, a few days ago in their dev channel, chrome changed their websocket protocol identifier and broke with released tornado. Major PITA for us...
Yes, and tornado master has been updated to work.
We really need to draw a message on the error (426) that unsupported websockets causes.
Marking for 0.12 so at least we provide a meaningful error instead of the blank stare of death :)
I use the latest tornado, and Chrome 15.0.874.102. Definitely, some useful error message is necessary.
BTW, this is the tornado commit that fixed the problem for them. I talked to Brian also about this, and I think the most sensible solution for our users is to apply that commit as a tornado monkeypatch for now. I'm going to submit a PR with the monkeypatch just now so that our regular users don't have to fight too much with this for now.
PR opened at #948 to take care of the tornado part. We'll close this once we also have a proper error message.
closed by merge of #948
I confirmed that this fixes it for me. I am closing the issue.
Nobody actually read my note above, did you ? :)
I deliberately did not close this issue until we also had a proper error message for the lack of websocket connections, though in all fairness that's a slightly different problem. I was just trying to keep things simple by having only open open issue around the whole problem.
Opened #952 then...
I was thinking about this, but then concluded that this issue really is fixed, and the warning is a different issue (but I should have opened the new issue for it), and then hit "comment & close", and then I noticed, that Min has already closed it in the meantime.
Thanks for fixing it so fast! Everything works excellent for me again.