How to Test Unity 5 Webplayer on Server

I'm looking to run tests of Unity 5 content over the web in webplayer for a group of testers in my company. Is there any way to make that happen?

When I take the most straightforward route (i.e. publishing to webplayer and hosting), I get a message that the file can only run locally. Is there any way around this limitation for development tests?

Thanks in advance!