Crossdomain policy issues since Unity4?

Since upgrading my project to Unity 4 I'm getting crossdomain issues and my game spits out errors (when run online only) about not being able to find the crossdomain policy files. Now, I have these files on both sides of the server which have always worked fine up until now. SO what happened?

My files are at http://theinvestigator.net/crossdomain.xml where the game is and http://static.theinvestigator.net/crossdomain.xml where additional bundles are streamed in from.

I have tried re-saving the crossdomain files but alas I still get the error.

??