It looks like the guy on Twitter doesn't understand that the API is down so you get 503 and a CORS error cause the pre-flight request failed and doesn't have th

It looks like the guy on Twitter doesn't understand that the API is down so you get 503 and a CORS error cause the pre-flight request failed and doesn't have the right headers. It will fail for any date. The question is really does the front-end normally try to query the next day and what's going on in their order execution system on the backend, which we don't know because this source is just speculation based on console logs in the browser.