Using dropbox

Dropbox is the service people tend to use when uploading custom content for pac.

https://www.dropbox.com/

There isn't much to say here. You install it, put files on your dropbox and grab the links to use in PAC.

See "How do I link to a file or folder?" on how to do this.

Note that the link has to be the direct link. If you're getting a link that shows you a download button, right click the download button and use that as link instead. You might need to remove some stuff in the URL afterwards if it doesn't work.