4.14 Notes on using Google Chrome or Mobile Safari to develop a plug-in that displays Operational Contents

You cannot implement a process that uses JavaScript to close a window created with a Custom Window Plugin. You must therefore use the standard functionality provided by the browser to close this type of window.
If execution of JavaScript takes 10 or more seconds, Google Chrome and Mobile Safari processing might stop. Develop the plugin so that plugin processing is completed within 10 seconds, including the communication time.