CORS doesn't work

[GrzegorzZajac000]

Describe the bug
I have Electron app in which I am using axios for requests. When I am getting request and it return status code 200, everything is okay, but when it returns 404, I can't read error in my app. I set CORS to *, but I can't see any cors headers in response headers. OPTIONS requests returns always 404 :/

Steps to reproduce the behavior

1. Turn on CORS in Strapi and set origin to *
2. Make simple app in Electron and try login to API with axios (in main.js of Electron app)

Expected behavior
OPTIONS request should returns 204 with no-content. Any other requests should return CORS headers.

Screenshots
Postman GET response headers: https://www.dropbox.com/s/wx4php43s6eyhyr/Screenshot%202019-10-22%2008.50.10.png?dl=0
Postman OPTIONS request: https://www.dropbox.com/s/y0mj7jk038d4j4j/Screenshot%202019-10-22%2008.53.29.png?dl=0
Strapi cors setting in admin panel: https://www.dropbox.com/s/2tkt1p8xx8398qp/Screenshot%202019-10-22%2008.52.02.png?dl=0

Code snippets

"cors": {
    "enabled": true,
    "origin": "*",
    "expose": [
      "WWW-Authenticate",
      "Server-Authorization"
    ],
    "maxAge": 31536000,
    "credentials": true,
    "methods": [
      "GET",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "OPTIONS",
      "HEAD"
    ],
    "headers": [
      "Content-Type",
      "Authorization",
      "X-Frame-Options",
      "Origin"
    ]
  }

System

• Node.js version: v10.15.2
• NPM version: 6.4.1
• Strapi version: 3.0.0-beta.17.2
• Database: sqlite
• Operating system: MacOS Catalina

Additional context
In axios promise even if request return 404, undefined response goes to then instead of catch :/

[GrzegorzZajac000]

Okay, that's not a problem with CORS in Strapi. Closing