如何在单击后退按钮时阻止网页加载？

Question

I m trying to disable a page from loading on click of back button after it is redirected to some certain pages. I have used onunload event but it stops loading of the page after visiting any page.

<script type = "text/javascript" >

function preventBack() {
    window.history.forward();
}
setTimeout("preventBack()", 0); 
window.onunload = function() {
    null
};

</script>

Also suggest if i could use window.stop(); Any help will be appreciated.

Answer 1

If the page it comes from isn't your page, you can't do anything about that. All timeouts/JavaScript will be cleared when your page is unloaded, and null inside a handler does absolutely nothing.

This is a user-friendliness thing that browsers do, because not being able to go back would be horrible. Please rethink your approach.