No valid crossdomain policy available to allow access

Hi all, SecurityException: No valid crossdomain policy available to allow access i get the error shown above whenever i try to make a www call to save player score on my server, i googled it and found that i have to create a crossdomain.xml and place it in the follder where the leaderboard scripts are saved, i did that but i m still getting the same error .Hers is my cross domain.xml even after doing this i m still getting the same error. i can acces the file fine through a browser i even saved it with utf8 format but still no success. NOTE : When i moved the html file and unity 3d file on the same path as that of leader board scripts it runs perfectly but that doesn't seem to me like a fair enough solution. thanks,