I'm having the same issue.
We're running a file sharing server (Mac OS X Lion Server) which also makes files available through the built-in Apache2 webserver. There are generally two areas on the server, one area is public (no password required) and the other is password protected.
In Safari, when a link to a quicktime file is clicked in the non-password protected area, the file plays fine in the browser window. However, when a video is clicked in the password protected area, the plugin loads in a new page, but it just sits there turning its wheels indicating that it is loading. The video never plays.
Weirdly, Firefox is able to play the password protected videos without issue. This problem seems to be related to Safari.
Anyone have any ideas why this is happening?
I'm having the same problem.
Client: Mac OS X 10.8.3 with Safari 6.0.3 and latest QuickTime plugin (7.7.1).
Server: Mac OS X 10.8.3 Server with Websites (Apache 2) enabled and some directories requiring authentication while others don't. QuickTime videos in authenticated sections don't play. The QuickTime plugin shows continuous "Loading" message but never plays. In unauthenticated sections, the video loads fine and plays. Seems like the QuickTime plugin doesn't have access to the same authentication cache as Safari does. Just my guess though. Haven't yet found a solution or work-around.
Well this looks like the same problem I'm having. I've posted an updated demo with more info. Short version is that it's still broken in Safari 7.0, Apple says it's a known bug since late 2010 which they've classified as medium priority.
I don't know much about video players. Apparently the QuickTime player in Safari is the problem. Are there any other players available to Safari which would work if I posted my movie in a different format?