DocumentRequest
Represents the arguments to load a document.
Gets or sets the stream of the request's body.
Gets or sets the method to use.
Gets or sets the mime-type to use, if any.
Gets or sets the referrer of the request, if any. The name is
intentionally spelled wrong, to emphasize the relationship with the
HTTP header.
Gets or sets the source of the request, if any.
Gets the target of the request.
Creates a new document request for the given url.