The http service provides asynchronous connectivity to HTTP servers. HTTP 1.0 and HTTP 1.1 are supported (including keepAlive). HTTP and HTTPS schemes are supported. Multiple simultaneous requests are supported. URLs must be completely specified, otherwise the request will fail (e.g. use "http://www.aol.com" and not "www.aol.com").

The http service will keep a reference count on the listener passed in. The method request::cancelAllRequests can be used to free the reference counts on listeners for any outstanding requests.

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