IE9 throws exceptions when loading scripts in iframe. Why?

Question

Precondition:

I have an aspx-page with iframe inside. This iframe points to the url handled by MVC on the same site (it\'s hybrid site, both standard ASP.NET and ASP

Answer 1

function waitForjQuery(){
    if(typeof jQuery!='undefined'){
        //Do yor stuff!
    }
    else{
        setTimeout(function(){
            waitForjQuery();
        },500);
    }
}
waitForjQuery();