Change the Close timeout for the WCF channel used by the sync JSB binding. The default value is currently 10 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);
}