Safari/Chrome (Webkit) - Cannot hide iframe vertical scrollbar

Question

I have an iframe on www.example.com that points to support.example.com (which is a CNAME to a foreign domain).

I automatically resize the height of my i

Answer 1

1.when you change iframe's scrolling yes or no, the iframe's scrollbar dosen't show immediately, you must refresh the iframe.

2.the html tap overflow in iframe colud influence the iframe's scrollbar

3.in the IE,you must clear iframe's src,then refresh iframe ,it will be work

4.so, show you the code

html

scrolling yes

javascript

var ifrm = document.getElementById("main_ifrm");
var btn1 = document.getElementById("btn1");
btn1.onclick = function(){
    $(ifrm).prop("scrolling","no");
    $(ifrm.contentWindow.document).find("html").css("overflow","hidden")
    var src = $(ifrm).prop("src");
    $(ifrm).prop("src","");
    $(ifrm).prop("src",src);
}