Guest invite flow not working correctly (websockets & authentication)

[joepio]

• Create a chat in a private drive
• Share menu => create invite
• tick write rights box
• Open link in new private tab
• unauthorized message (this is problem number 1)
• press retry
• sync not working

In the console:

Uncaught (in promise) Error: Agent has no subject, cannot authenticate
    Cx authentication.js:16
    W1 authentication.js:7

I think part of the problem is that a request is sent while the Agent doesn't have a subject yet - this is what happens with the invite flow.