Okay, a seemingly very simple problem:
I go to any question anywhere on the network. I try to flag it. The first dialogue opens just fine:
Then, when I select the "it doesn't belong here, or it is a duplicate" option, it loads for a moment, then closes.
When I try again, I can select the option, but the subsequent dialogue doesn't show up, it is just stuck there with no indication of anything happening.
On the JS console, I get regular outputs of a connection error to
Firefox can't establish a connection to the server at ws://sockets-se.or.stackexchange.com/. @ https://meta.stackoverflow.com/content/js/full.js?v=b2fcf8c8b3aa:12
And when selecting the option on the dialogue, it reports an argument conversion error:
The same pattern also occurs on Ask Ubuntu. Force-refreshing, restarting the browser and even booting to a different OS do not fix this.