It would be super helpful to have support for proxies in the HTTP resolver.

Suggest this could be implemented with the following optional fields in the HTTPResolverOptions type:

• proxyHost - The HTTP proxy host to use (optional)
• proxyPort - The port of the HTTP proxy host to use (optional, default 8080)

These could then be passed through to the node http library as the host and port options in http.options respectively when invoked by the HTTP resolver.

Cheers :)