SPA usage on expired session not redirecting to login

[james-baker]

Repro:
(presumably) Have session expire (what does it take, a few weeks? but it doesn't seem like activity continuously refreshes it? or maybe major deploys invalidate all sessions, I don't know)
Be on a standard main page (like Subscribers)
Click on a left nav link (like Emails)
Expected: If I've been logged out/expired, then send me to the login page
Actual: mess of 400 errors and similar in the web console, no visible reaction in the UI.

(If I reload the page from the URL, then I DID get sent to the login page at that time.)

[james-baker]

I'm sitting inside a tab, last touched the session 6 days ago. Clicking on left nav links all over, no UI response at all.

Console just has things like "Failed to load module script: Expected a JavaScript module script but the server responded with a MIME type of "text/html". Strict MIME type checking is enforced for module scripts per HTML spec." tags-BQLpcI8l.js:1
(which I think just means file-not-found)

So it's hard for me to tell if this is "expired session" or "app has been updated so all URLs are broken"
EDIT: Okay further testing reveals my session is still valid this time - it's just that "all URLs are broken by app update" seems to act the same way as "your session expired". Is there still an open defect on that also?

[jmduke]

Okay excellent — that was my suspicion here.

This was not true even a month ago, but Vite just shipped error handling for this which I think should solve matters:

vitejs/vite#11804 (comment)