This feature request is for this specific issue at https://www.digitalocean.com/community/questions/why-can-i-use-http-localhost-port-with-cors-in-spaces.
It's been almost 3 years and it is unsatisfying that one can't set 127.0.0.1:8080 on the UI and have to go with all the problem of setting up s3cmd (not everyone has a unix like OS) and keep track of them in a file rather than a good made UI that I know DO can offer.
Setting CORS to allow 127.0.0.1:port is ESSENTIAL for devs to develop their applications. Please update the UI for the Origin.
Avoiding the tremendous time of setting up s3cmd and some needs to even learn Python on Windows.
Help us keep the origins in DO dashboard rather than the XML file.