You need to configure the <simulatorlink> element in the MobilePreview.config to point to the NetBiscuits Custom Application.
Procedure
- Open the
MobilePreview.config configuration file, located by default in your SDL Tridion installation \C:\Program Files (x86)\Tridion\web\WebUI\Editors\MobilePreview\Configuration directory, in a text editor.
- In the
<clientconfiguration> section, configure the <simulatorlink> element to point to the Default URL—or Friendly URL, if specified—of the NetBiscuits Custom Application, for example:
<simulatorlink>http://my.staging.app.com</simulatorlink>
- Save and close the file.