A) Absolutely - WASP works within your browser and respect all of the standard browser behaviour - including working through firewalls and proxies. Two examples:
- If you work within a very secured environment without any access to the Internet, this means even calls to services like Google Analytics, Adobe SiteCatalyst, WebTrends On Demand or any other external service will be blocked. WASP will work as expected and detect the tags - however, since your highly secured environment doesn't allow data to be sent outside, WASP will report tags firing but can't report the fact the data never actually reached its destination.
- In many corporate environments access to the Internet is controlled - if the network environment is configured to let data go to the 3rd party services, WASP will work as expected. You don't have to make any changes to your firewall or proxy settings This is especially useful in development environments, intranets, secured websites and such.