On Desktop with Firefox on Linux accessing chat[.]openai[.]com website to talk with chatgpt 3.5, since about 11 hours ago prompts stopped sending and an animated gray wheel appeared instead of the send message icon(which is an up arrow icon), whilst the message is still in the edit box (not cleared). This never completes. It works fine on mobile in Chrome though.
Soon after, I’ve noticed an apparently new feature while looking at old chats: a speaker icon appeared next to responses with tooltip “Read Aloud”, therefore, I’m guessing this was just rolled out as a new feature, and at the same time broke the sending of prompts in certain cases, like mine.
Looking at the requests I see this one is 404:
https:// cdn[.]oaistatic[.]com/_next/static/chunks/sso.d74092545a949ef3.js
(can’t include links in my posts, it says)
and I’m hoping this is why the issue happens, but I’m unsure.
(because it’s 404, it appears as if the response has the wrong content-type as text/plain and the x-content-type-options is set to nosniff and that it’s missing access-control-allow-origin, but it’s just because it’s 404)
So, can some dev fix this? unless this particular 404 is not a problem (which seems unlikely), and in fact the problem is somewhere else? 
Thanks.
Found the problem: webassembly need to be enabled in the browser, for my particular case this means the following two need to be true instead of false:
javascript.options.wasm
javascript.options.wasm_baselinejit
in about:config in Firefox.
Note: that it worked with these on false before, just fine, so it’s a new requirement, I guess some features now require it. Now prompts send ok. If I turn any of them to false, prompts again don’t send anymore, in the same way that I’ve mentioned before.
Browsers by default have this wasm turned on, so normal people aren’t affected, obviously.
That file still 404-s though, so I guess that’s an unrelated issue.
My current (chatgpt 3.5 works)settings are thus these:
devtools.debugger.features.wasm false
javascript.options.asmjs false
javascript.options.throw_on_asmjs_validation_failure true
javascript.options.wasm true
javascript.options.wasm_baselinejit true
javascript.options.wasm_caching false
javascript.options.wasm_exceptions true
javascript.options.wasm_exnref false
javascript.options.wasm_extended_const true
javascript.options.wasm_function_references false
javascript.options.wasm_gc false
javascript.options.wasm_moz_intgemm false
javascript.options.wasm_optimizingjit false
javascript.options.wasm_simd false
javascript.options.wasm_simd_avx false
javascript.options.wasm_tail_calls false
javascript.options.wasm_trustedprincipals false
javascript.options.wasm_verbose true