InformAction Forums

Posted: **Sun Mar 21, 2010 9:04 pm**

Hi I've been testing something on my own webspace.

To prevent any other manipulating of the page content on the client side I could stop events from bubbling up using the stopPropagation function, by embedding this piece of javascript in the page:

Code: Select all

if (document.addEventListener) {
document.addEventListener("DOMContentLoaded", function(ev) {ev.stopPropagation();}, false);
}else if(document.attachEvent){
document.attachEvent("DOMContentLoaded", function(ev) {ev.stopPropagation();});
}else{
document.DOMContentLoaded = function(ev){ev.stopPropagation();};
}

This would stop extentions like greasemonkey for example too as they only get fired after the DOM was loaded but at that point stopPropagation prevents it from running.

My question is, can I reverse this and prevent this specific embedded script from running, using the surrogate replacement method?

Posted: **Mon Mar 22, 2010 10:38 am**

Nighthawk wrote: My question is, can I reverse this and prevent this specific embedded script from running, using the surrogate replacement method?

Yes you can:

Code: Select all

(function() {
var stopPropagation = Event.prototype.stopPropagation;
Event.prototype.stopPropagation = function() {
  if (this.type != "DOMContentLoaded") stopPropagation.apply(this);
}
})();

Posted: **Mon Mar 22, 2010 7:12 pm**

Thanks a lot, this feature is a real nice addition, props!

InformAction Forums

Block a single embedded script

Block a single embedded script

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Re: Block a single embedded script