Change the Close timeout for the WCF channel used by the sync JSB binding. The default value is currently 2 seconds. Chaning this to Zero will result on Abort() being called on the WCF Channel Host

public static TimeSpan WcfTimeout { get; set; }

public:
static property TimeSpan WcfTimeout {
	TimeSpan get ();
	void set (TimeSpan value);
}