28
Apr

Learn how to detect if a user has got to a page using the back button?

By admin|Computer, Internet, JavaScript

Think if you has a page with data which load data using ajax and edited those data using ajax form. And go to another page using a link there. And click back button again & old data loaded and not loading last edited data. So you have to reload that page when click on back button.

Here is the solution for that.

<form name="ignore_me"> 
<input type="hidden" id="reload_this_page" name="reload_this_page" value="0" /> 
</form>

and here is the javascirpt for this.

var reload_bit = document.getElementById('reload_this_page');
if (reload_bit.value == '1') window.location.reload();

function mark_page_reload() {
    reload_bit.value = '1';
}

You have to put mark_page_reload() function when form updating.