Strange WebUI issue, jQuery HTTP2 Protocol error

[Drocona]

Hello,

Recently I tried login onto the WebUI on OPNsense 23.7.6 to adjust some VPN settings but after login in I get nothing more than the navigation pane showing up. I can click everything in the navigation pane but I get no content at all.

From the developer console I can see the following errors:
GET https://router.my.domain/ui/js/jquery-3.5.1.min.js net::ERR_HTTP2_PROTOCOL_ERROR
GET https://router.my.domain/ui/js/d3.min.js?v=99b262916edee21c net::ERR_HTTP2_PROTOCOL_ERROR
GET https://router.my.domain/ui/js/nv.d3.min.js?v=99b262916edee21c net::ERR_HTTP2_PROTOCOL_ERROR

I guess this blocks the content from being shown on page.
Browsing these manually will give the same error in the browser:

Code Select Expand

Hmmm... can't reach this page
It looks like the webpage at https://router.my.domain/ui/js/jquery-3.5.1.min.js might be having issues, or it may have moved permanently to a new web address.
ERR_HTTP2_PROTOCOL_ERROR


Logging into SSH I can find the files present in the www folder.

What's going on here? It just magically stopped working, no changes have been made since before the last time I logged on to check some VPN statistics and it still worked.

Any pointers would be much appreciated!

[Drocona]

So, 5 days later and it suddenly works again.

I still have no clue what caused this to happen and fix, no changes have been made to the OPNsense and I am the only one with access. I don't like this situation at all as it's seemingly not deterministic and random.

Will keep an eye on if this happens again, in the meantime if anyone has any suggestion at all, I'm all ears!

[vilela]

I have exactly the same problem, however, access hasn't returned to me, I still can't access it.  :(