XMLHttpRequest cannot load <url> due to access control checks [IOS]

Hello,

I’m trying to make a http request to local network and I received the following error:

Preflight response is not successful
XMLHttpRequest cannot load <url> due to access control checks.
Failed to load resource: Preflight response is not successful

My request: 

axios
 .get('<url>')
 .then(res => {
  console.log(res)
 }).catch((err) => {
  if (err.status === 500) {
   // error
  } else {
   // error
  }
 })

I tried to set some headers to this request like Access-Control-Allow-Origin, Access-Control-Allow-Headers, Access-Control-Allow-Methods. Unfortunately it didn’t work.

This issue is only in iOS app. In android app or browsers the request works properly.

Can anyone help me? Thanks!