Fantastic App!

I am attempting to consume an external iCal feed and I am receiving and error:

"URL webcal://ical.mac.com/ical/Italian32Holidays.icscould not be readed"

I am attempting to view the calendar in a web browser.

I made the modification to the java.policy file suggested in the documentation:

Insert the following text at the end of the file: 

grant { permission java.security.AllPermission; }; 

<strong>Save and restart server.</strong></div>

Unfortunately I am getting the error. any suggestions on what to check? I am not sure how to tell if this is a configuration or code error.

Thanks,

Elijah Lapson