Internal links opened from notebooks show the sidebar twice (bug)

[jdossgollin]

I think a picture does better here

If I go to HW0 and click "set up Julia and Pluto"

then weirdness ensues

Yet if I copy and paste the link into my browser, it works fine

I suspect this is an issue with the plutonotebookpage styling?

[jdossgollin]

Potentially worth noting: I am getting this in both Firefox and Safari on Mac.