jquery - iOS prevent scrolling with overlay -

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i have wordpress site basic homepage structure this:

<html>     <head></head>     <body>         <div id="overlay"></div>         <div id="scrolling-body">             //lots of stuff here         </div>     </body> </html>

my css looks this:

div.overlay {     background:#000000;     display:block;     width:100%;     height:100%;     position:fixed;     top:0px;     bottom:0px;     opacity:0;     -webkit-transition: opacity 15s;     -moz-transition: opacity 1s;     -ms-transition: opacity 1s;     -o-transition: opacity 1s;     transition: opacity 1s;     overflow-y:auto;     -webkit-overflow-scrolling:touch; }  div.overlay.active {     z-index: 10000;     opacity:0.4; }

and toggle active class simple jquery.

my issue when overlay active, can still scroll #scrolling-body on ios mobile devices. prevent scrolling on other devices (scroll calculated when active toggled):

$(window).scroll(function(e) {     e.preventdefault();     $(document).scrolltop(scroll); });

i have tried touchstart solutions mentioned here on (cant find links now). don't work. else need do?


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