Chrome / Firefox doesn't display images in objects shown in beforeunload event

Question

I\'m using jQuery blockUI plugin to show some nifty \"loader\" on each AJAX call and each URL change.

Here is full code responsible for that:

var roo         


        

Answer 1

I managed to solve this problem, dropping the idea in favor of CSS and classes:

    

        
    
    

        Proszę czekać! Operacja w toku...
    

Changing blockUI plugin call to:

$.blockUI.defaults.message = $('#blockui-animated-content');
$.blockUI.defaults.css.top = '45%';

$(document).ajaxStart($.blockUI).ajaxStop($.unblockUI);
$(window).on('beforeunload', function(){$.blockUI();});

Now, all works just fine, both in AJAX and URL change. Unfortunately, this doesn't answer the question: "Why Firefox and Chrome doesn't display images from tags in onbeforeunload event?".