Problem Cross Origin with Mailgun


We have problem with Cross Origin on real device, we use a contact form with Mailgun and we get this error:

{"_body": {“isTrusted”: true}, “status”: 0, “ok”: false, “statusText”: “”, “headers”: {}, “type”: 3, “url”: null}

On android platform works fine, but on IOS it’s not working.

Have possibility to help us for this problem?

Thank you very much!!