_DontProxyHeaders.put(HttpFields.__ProxyConnection, o);
_DontProxyHeaders.put(HttpFields.__Connection, o);
_DontProxyHeaders.put(HttpFields.__KeepAlive, o);
_DontProxyHeaders.put(HttpFields.__TransferEncoding, o);
_DontProxyHeaders.put(HttpFields.__TE, o);
_DontProxyHeaders.put(HttpFields.__Trailer, o);
_DontProxyHeaders.put(HttpFields.__Upgrade, o);
_ProxyAuthHeaders.put(HttpFields.__ProxyAuthorization, o);
_ProxyAuthHeaders.put(HttpFields.__ProxyAuthenticate, o);
_ProxySchemes.put(HttpMessage.__SCHEME, o);
_ProxySchemes.put(HttpMessage.__SSL_SCHEME, o);
_ProxySchemes.put("ftp", o);