How to get scrollTop of an iframe

Question

jQuery\'s scrollTop returns null when window is an iframe. Has anyone been able to figure out how to get scrollTop of an iframe?

more info:

my script is runn

Answer 1

I have faced the same problem in my iframe. My whole website comming white iframe and scrolling not working So I used this code and it's work fine.

Step 1. put this code to your iframe

var offsettop =  120;
window.parent.postMessage({"setAnchor": offsettop}, "*");

Step 2. put this code where your call you iframe

window.addEventListener('message', function(event) {
  if(event.data['setAnchor']>0) {
    var offsetHeight =event.data['setAnchor'];
    jQuery('html, body').animate({
      scrollTop: offsetHeight
    }, 200);
  } 
})