title: phonegap-app-developer does not work with cordova-plugin-wkwebview-engine
body: <p>can anyone run phonegap-app-developer with cordova-plugin-wkwebview-engine? </p>
  
  <p>this is my environment:</p>
  
  <pre><code>phonegap: 6.3.0
  cordova-plugin-wkwebview-engine: 1.0.3
  cordova-labs-local-webserver: from https://git-wip-us.apache.org/repos/asf/cordova-plugins.git#master:local-webserver
  </code></pre>
  
  <p>I use webpack dev server to download assets, and I think I configure it  to return CORS header already (Access-Control-Allow-Origin: *).</p>
  
  <p>under such a circumstance, I try to run phonegap-app-developer with cordova-plugin-wkwebview-engine. for the first time with this <a href="https://github.com/apache/cordova-plugin-wkwebview-engine" rel="nofollow noreferrer">instruction</a>. but got following error, which seems to described in <a href="https://stackoverflow.com/questions/24882834/wkwebview-not-loading-local-files-under-ios-8/">here</a>. </p>
  
  <pre><code>2016-08-16 16:50:01.026 PhoneGap[456:87484] Copying Cordova Assets
  2016-08-16 16:50:01.026 PhoneGap[456:87484] Found /www folder. Will copy Cordova assets to it.
  Received an unexpected URL from the web process: 'file:///var/mobile/Containers/Data/Application/...snip.../Library/NoCloud/phonegapdevapp/www/index.html'
  Received an invalid message "WebPageProxy.DecidePolicyForNavigationAction" from the web process.
  </code></pre>
  
  <p>then I find <a href="https://stackoverflow.com/questions/36477450/even-basic-ionic-project-with-cordova-wkwebview-engine-plugin-produces-white-scr">this</a> article, do the same with phonegap command (instead of ionic). as a result, above error is gone. but still phonegap-app-developer shows white screen. </p>
  
  <p>official <a href="https://github.com/phonegap/phonegap-app-developer" rel="nofollow noreferrer">repository</a> still does not use wkwebview plugin, so I doubt it does not work with developer app. </p>