docs: function resolveUrl(headers, relativeURL) {
  	var path = headers[":path"] || "";
  	var baseUri = headers[":scheme"] + "://" + headers[":authority"] + path;
  
  	var outURL;
  	if (relativeURL && !fullUrlExp.test(relativeURL) ) {
  		outURL = url.resolve(baseUri, relativeURL);
  	} else {
  		outURL = relativeURL;
  	}
  	return outURL;
  }