On a custom ASP page that contained an iframe there were issues with the scrollbars on the iframe because of the javascript in the asp page was attached to the window.onload event.


For example if you bind to the onLoad event using javascript:

window.onload = function() { doLoad(); }

It will override what is specified in the body tag which is generated by CRM. This can cause issues on the asp page such as scrollbars not appearing.


You should use jQuery to bind to the onLoad event.


$(function() { doLoad(); });