I've fixed this error so many times and have had to search the internet for the fix everytime that I've finally decided to log it into my own blog. Mainly so I can easily find it. Here's the problem. As a general rule, all https applications do not cache any pages for security reasons. This leaves the issue of downloading files from a https site. For example, if you try to download a file (pdf, xls, doc, etc) from any site, your computer will download it to cache before opening it with the associated...