Unfortunately it looks like there is another extension that is interfering with that server behavior. You will have to delete the configuration directory to get around it currently. We'll have to do some more testing to look into which extension is causing the interference. 
Thanks for the reply Jimmy. Are you actually looking into this now, or is it something for the future? I'f it's now, I'll hold on for a fix as deleting the config folder is a real pain, and if it's another extension interferring then it's likely to return anyway.


