Can't read cookie

Hey guys,

Sorry about my english

I can't read a cookie in Edge Animate, how can I do it ?

I'm already saw the others topics about it (i think hehe). I tried to add a .js file clicking in "+" on library or just put on "compositeready" but don't work

the code is

if (document.cookie.indexOf("url") >= 0) {

// create usable cookies array

var pairs = document.cookie.split(";");

var cookies = [];

for( var c = 0; c < pairs.length; ++c)

{

    var pair = pairs[c].replace(/\s/g,"").split("=");

    cookies[ pair[0] ] = pair[1];

}

// create the iframe

document.getElementById("principal").src = cookies["url"];

// assign it the remembered url

// delete the cookie

document.cookie = "url=; expires=Thu, 02 Jan 1970 00:00:00 UTC";

}

help me ?