title: ionic app run perfectly on browser but not working on devApp and android apk
body: <p>This question is related to <code>ionic 3</code> and I want to know how to run an ionic app using a real device. </p>
  
  <p>I have developed an hybrid application and I was not able to connect my app with server. It works fine in my laptop browser. But it does not work in devApp and android apk. </p>
  
  <p>I have tried many solutions but was not able to get the perfect solution. I have made a proxy server to access the api by ionic devApp but it doesn't even show a single error.</p>
  
  <p>I think this problem is related about <code>CORS</code>.</p>