Burt Holzman

### Troubleshooting docs - [X] My problem is not solved in the Troubleshooting docs ### Anaconda default channels - [X] I do NOT use the Anaconda default channels (pkgs/* etc.)...

Changes for JupyterHub >= 4.1

1

Adapts to some changes for XSRF processing upstream - ensuring we don't call some of the parent methods before authentication info is available.