public FirefoxInterceptableRequest(FirefoxSession session, Frame frame, List <Request> redirectChain, NetworkRequestWillBeSentFirefoxEvent payload)
{
Id = payload.RequestId;
_session = session;
var headers = payload.Headers.ToDictionary(header => header.Name.ToLower(), header => header.Value, StringComparer.InvariantCultureIgnoreCase);
Request = new Request(payload.IsIntercepted == true ? this : null, frame, redirectChain, payload.NavigationId, payload.Url, payload.GetResourceType(), new HttpMethod(payload.Method), payload.PostData, headers);
}