Internet Explorer still allows java applets to be ran natively (just need to enable the site through security). Chrome can also be used through an extension called "IE Tab". Instructions are below.

For Windows:
1)Open IE or Chrome 
2)Update Java.
3)Control panel-> Java->Security-> Add "http://donar.umiacs.umd.edu/" to exception site list.
4) If using Chrome, go to the chrome extensions page and install the extension "IE tab".

For MAC:
1)Open Safari
2)Update Java
3)System Preferences -> Java Control Panel -> Security -> Add "http://donar.umiacs.umd.edu/" to exception site list.