CORS preflight issue

[RamaHerbin]

Hello everyone,
I have an issue when I post login credential to the /api/auth/login endpoint.

I request from my front-end on localhost:3000 to umami on localhost:8080

The request works fine in Postman.
What am I doing wrong ?

  fetch("http://localhost:8080/api/auth/login", {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      'Accept': '*/*',
      "Access-Control-Allow-Headers": "*",
      "Access-Control-Allow-Methods": "*",
      "Access-Control-Allow-Origin": "*",
    },
    body: JSON.stringify(formState),
  })

Originally posted by @RamaHerbin in #1952 (comment)

[Dumbyarnik]

Hi, did you find a solution for that?

[RamaHerbin]

I didn't :/

[g-mero]

Same here. Seems like the auth endpoint didn't send any cors response. You can append a cors header on your server-side (nginx、openresty etc.)

[RamaHerbin]

Yeah, that's a good idea, but unfortunately, I had no control over the server-side configuration in my context