title: ionic build ios success but it opens nginx error after launching the app
body: <p>Does anyone have the same issue with ios builds? 
  IONIC ios build was successful and I was able to test in a real device, it works great but when I launch in emulators I get nginx error. 
  Below are the screenshot and ionic version
  <a href="https://i.stack.imgur.com/HE4tp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HE4tp.png" alt="enter image description here"></a></p>
  
  <p>Ionic Info</p>
  
  <pre><code>    Ionic:
  
     ionic (Ionic CLI)  : 4.2.1 (/usr/local/lib/node_modules/ionic)
     Ionic Framework    : ionic-angular 3.9.2
     @ionic/app-scripts : 3.1.8
  
  Cordova:
  
     cordova (Cordova CLI) : 8.0.0
     Cordova Platforms     : android 7.0.0, ios 4.5.5
     Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 2.2.0, (and 4 other plugins)
  
  System:
  
     ios-deploy : 1.9.2
     NodeJS     : v10.13.0 (/usr/local/bin/node)
     npm        : 6.4.1
     OS         : macOS
     Xcode      : Xcode 10.1 Build version 10B61
  </code></pre>