Online hosts don't always work. It's dependant on your ISP hops. In my case and in my demographic I have a hard time with online sites. Loadiine.ohv doesn't even work for me. I have to self host to make it work. It has nothing to do with mime types.
me is the opposite , all online servers work , but local server does not work ... and downloaded the exploit files from several different sources , always gives the same error ...