Error: Access is denied in CRM while consuming a 3rd party web Service

Hi Folks,

I have a HTML Web Resource in CRM and I am trying to access a 3rd part web service using $.ajax in that web resource and I am getting the below error:

"Error: Access is denied"

When I access this web service using the same $.ajax code in an independent html file, it works fine.

what could be the reason for this.

Thanks in advance!