I'm on Firefox, yesterday it worked, today it doesn't. Requests to 7tv.io fail with a 503 error, CORS errors.
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://7tv.io/v3/emote-sets/global. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing). Status code: 503.
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://7tv.io/v3/emote-sets/global. (Reason: CORS request did not succeed). Status code: (null).
FFZ [addon.7tv-emotes.api]: Request to the following URL encountered an error: emote-sets/global <anonymous code>:1:147461
FFZ [addon.7tv-emotes.api]: TypeError: NetworkError when attempting to fetch resource.
The requests are sent in strict-origin-when-cross-origin mode, with Origin https://www.twitch.tv, but the responses are missing Access-Control-Allow-Origin: https://www.twitch.tv for the browser to accept it.
