window.focus（）在Chrome中不起作用

Question

Here is my code:

var myWindow = window.open('','zzz','width=600,height=700');
myWindow.document.write('test');
myWindow.blur();
myWindow.focus();
window.onfocus=function(){
    this.document.write('<br />Focused!');
}
var w = window;
myWindow.onfocus=function(){
    this.blur();
    this.document.write('<br />Focusing on main window!');
    w.focus();
};
myWindow.focus();

Here is the fiddle: http://jsfiddle.net/maniator/nMGNS/

When the popup window is focused it should print Focusing on main window! on the popup and then focus on the main window and print Focused! over there.

But it does not.

Here is the information about my browser:

Google Chrome   22.0.1229.79 (Official Build 158531) m
OS  Windows
WebKit  537.4 (@129177)
JavaScript  V8 3.12.19.11
Flash   11.3.31.331
User Agent  Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4

---

Aside :

I know about the alert(...) hack, and I want to avoid it. ​

Answer 1

By @epascarello's comment,Changing document.write to alert ,It can be work in chrome:

var myWindow = window.open('','zzz','width=600,height=700');
myWindow.document.write('test');
myWindow.blur();
window.onfocus=function(){
    alert('Focused!');
}
var w = window;
myWindow.onfocus=function(){
    this.blur();
    alert('Focusing on main window!');
    w.focus();
};
myWindow.focus();