set cookie on base_url

[minrk]

avoids clobbering cookies when multiple notebook servers are run on one host (e.g. binder)

Users can override cookie_options.path = '/' if they want cookies to be shared across notebooks on one host.

[gnestor]

We're going to try to release 5.2.1. Should this be included?

[yuvipanda]

@gnestor I guess this is too late to respond, but this is causing problems on mybinder. It would be great if there's a release made with this :)

[gnestor]

We could do a 5.2.2 and only add this. Sound good?

[yuvipanda]

@gnestor that would be awesome!

[minrk]

Sorry I didn't respond promptly the first time around; not keeping up with my GitHub notifications. It would be handy for binder to have this in a patch release.

[yuvipanda]

Post-thanksgiving, any luck? :)

[gnestor]

@yuvipanda So sorry to put this off. Will release 5.2.2 today 👌

[gnestor]

@meeseeksdev backport to 5.2.2

[gnestor]

Update: notebook 5.2.2 is published to pypi (https://pypi.org/project/notebook/5.2.2/) and PR is submitted for conda-forge (conda-forge/notebook-feedstock#25). Please confirm that this fixes the issue on binder and afterwards I will announce the new version on the mail list.