Android Chrome Window.onunload

I am developing an HTML5 app specifically for Android and Chrome. The problem I have stems from the requirement to track open browser tabs. I do this by creating a unique ID stored

Solution 1:

Depends on the browser. Some use .onunload, some use onbeforeunload.

Quickest solution is

window.onunload = window.onbeforeunload = function() {
    var guid = sessionStorage.getItem("WindowGUID");
    var tmp = JSON.parse(localStorage.getItem("WindowGUIDs"));
    tmp = tmp.remove(guid);  // remove is a custom prototype fnlocalStorage.setItem("WindowGUIDs", JSON.stringify(tmp));
});

Tested on gingerbread, ICS & jelly bean using native android browser.

Solution 2:

I did something similar, the errors were exactly the same. I noticed if call window.close() programmatically, the event is called. I just added my own 'close' button on the page.