title: SAPUI5 restore app state after reload page
body: <p>I'm trying to save the app state (filter values) of my custom developed app so that I can restore them after the user is reloading the page.</p>
  <p>Restore the app state after navigating to a different app and then coming back is already working, but somehow the app state is always empty the user reloads the page.</p>
  <p>Does someone know if I have to do something special to persist the app state?</p>
  <p>I'm using the CrossApplicationNavigation Service</p>
  <pre><code>this.navigator = sap.ushell.Container.getService(&quot;CrossApplicationNavigation&quot;);
  ...
  
  this.navigator.getAppState(this.getOwnerComponent(), Key)
      .done(function (appState) {
                              that._appStateRestoreData(appState.getData());
                      });
  
  </code></pre>