public static IObservable <WWW> PostWWW(string url, WWWForm content, Dictionary <string, string> headers, IProgress <float> progress = null)
{
Dictionary <string, string> contentHeaders = content.get_headers();
return(Observable.FromCoroutine <WWW>((IObserver <WWW> observer, CancellationToken cancellation) => ObservableWWW.Fetch(new WWW(url, content.get_data(), ObservableWWW.MergeHash(contentHeaders, headers)), observer, progress, cancellation)));
}
