[EventCalendar] Permission denied to call method XMLHttpRequest.open

[Jacob Kennedy]

I've just run across something I've never seen before.  When you access my 
site leaving out the "www" the next month and previous month links work 
just fine.  If you access it with the "www" in the URL I get a javascript 
error stating "uncaught exception: Permission denied to call method 
XMLHttpRequest.open"

You can try it here and here:
http://dourodukes.com/    -  works fine
http://www.dourodukes.com/    - bombs

Anyone?  Bueller?

Best regards,

Jacob
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