title: InAppBrowser not closing?
body: <p>I'm using the InAppBrowser plugin (v1.1.1) with Cordova for an OAuth login process. Unfortunately, the InAppBrowser doesn't appear to be closing the browser. My "closeBrowser" function instead continually triggers the interval, and the browser remains on-screen on the Android (I have not tried other devices at this time.)</p>
  
  <p>Is there a way to forcibly close the InAppBrowser other than <code>.close()</code>, or hide it? Or maybe there's a flaw in my code somewhere that is locking the browser.</p>
  
  <pre><code>LogInPage.prototype.handleExternalLogin = function (externalLogin) {
      var _this = this;
  
      var ref = window.open(Environment_1.settings.baseUrl + externalLogin.route.url, "_blank", "location=no");
      ref.addEventListener('loadstart', function (event) {
          if (_.startsWith(event.url, Environment_1.settings.baseUrl + "/api/Account/account/ExternalLoginCallback")) {
              // Now we want to load a different url that will give us the mobile access token
              console.log('get external-mobile-token');
              _this.closeBrowser(ref);
  
              var ref2 = window.open(Environment_1.settings.baseUrl + "/api/Account/external-mobile-token", "_blank" /*, "location=no"*/);
  
              ref2.addEventListener('loadstop', function (event) {
                  console.log('loadstop ' + event.url);
                  if (event.url == Environment_1.settings.baseUrl + "/api/Account/external-mobile-token") {
                      ref2.executeScript({ code: 'window.document.documentElement.innerText' }, function (contents) {
                          _this.login(contents);
                          _this.closeBrowser(ref2);
                      });
                  }
              });
  
              ref2.addEventListener('loaderror', function (event) {
                  console.log(event);
                  _this.closeBrowser(ref2);
                  // TODO - do something?
              });
          }
      });
  
      ref.addEventListener('loaderror', function (event) {
          console.log(event);
          _this.closeBrowser(ref);
          // TODO - do something?
      });
  };
  
  LogInPage.prototype.closeBrowser = function (browser) {
      var interval = setInterval(function () {
          console.log('closing');
          browser.close();
      }, 10);
  
      browser.addEventListener('exit', function () {
          console.log('closed');
          clearInterval(interval);
      });
  };
  
  LogInPage.prototype.login = function (token) {
      console.log(token);
  };
  </code></pre>
  
  <p>The above code is actually generated from TypeScript, but I figured I wouldn't confuse the issue.</p>