IE6 Secure page contains non-secure items problem. (iframe)

I have noticed an issue that arises only on IE6, in relation to secure pages.  Because I have included alot of javascript and css files on my page, I first assumed the issue was related to the JavaScript or StyleSheet files. I checked the files and everything seemed fine. Through further research I realized that the issue was because of the problem IE6 has with iframes which have no src attribute set in them.

I use the iframes to create dialog popups,  so in my case it is not important if the src attribute of iframe is set or not. To resolve the issue, I create a https compatible blank html file and set that as the src attribute of the iframe.

There are some other guys who solved the problem in different ways:

http://weblogs.asp.net/bleroy/archive/2005/08/09/how-to-put-a-div-over-a-select-in-ie.aspx

http://groups.google.com/group/google-web-toolkit/browse_thread/thread/cd43162d8367c562