When attempting to use jquery form plugin to handle an image upload over SSL, IE 6 presents the dreaded "mixed content" error. This is because jquery form adds an iFrame with no src. An easy, cross- browser fix can be attained by changing the line that adds the iFrame to include this src: src='javascript:false;' I found this fix while researching the same problem in Thickbox: http://disjointthoughts.com/2007/04/25/thickbox-https-ie6-and-os-x-firefox-compatibility-issues/comment-page-1/#comment-8006 I thought perhaps it'd be an easy update to the jquery Form source. Thanks for all your hard work. :patrick