Can't copy and paste between tabs on jbrowse.org demos

[cmdcolin]

There is a system for jbrowse-web that lets you copy and paste the URL from one tab to another, and it uses BroadcastChannel to get the info from the old tab to the new one

Kind of a tricky system

This appears to work on localhost but not on jbrowse.org (unclear why)

Steps

Visit e.g. https://jbrowse.org/code/jb2/v3.0.5/?config=test_data%2Fvolvox%2Fconfig.json&session=share-JCsm46ATdn&password=ilHg5
Wait till it loads and changes to a local session
Copy and paste the URL to a new tab
Observe it says that it says 'localstorage session not found'

Random thought: might be able to fetch from the autosaves in indexed db instead of broadcast channel