Jupyter Notebook timeout waiting for response in Chrome

I had the same issue and managed to get it to load again by resetting my Chrome profile by going to chrome://settings/resetProfileSettings

Prior to this I tried clearing the cache/history but that didn't help, I'm guessing some part of the profile was corrupt.

For anyone stumbling across this thread in 2021 like I did I found that Chrome HSTS was responsible for auto forwarding from http to https in my local development environment. I was able to get around this by:

• Going to chrome://net-internals/#hsts in my Chrome browser and entering the domain you are having issues with under Delete domain security and clicking on the Delete button.

Two solutions worked for me:

1) Resetting Chrome settings by going to chrome://settings/resetProfileSettings (as suggested by Neil)

2) Accessing the notebook via http instead of https (remove the "s" in http) - I was able to access my notebook this way via Safari, but not Chrome as Chrome defaults to https