XMLHttpRequest cannot load <url> due to access control checks

Hello,

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

Code Block 
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:

Code Block 
   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!