let session.ready property work without throwing exception after a failed originate

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7877 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/languages/mod_spidermonkey/mod_spidermonkey.c

@@ -1969,9 +1969,7 @@ static JSBool session_ready(JSContext * cx, JSObject * obj, uintN argc, jsval *
 {
 	struct js_session *jss = JS_GetPrivate(cx, obj);
 
-	METHOD_SANITY_CHECK();
-
-	*rval = BOOLEAN_TO_JSVAL(switch_channel_ready(switch_core_session_get_channel(jss->session)) ? JS_TRUE : JS_FALSE);
+	*rval = BOOLEAN_TO_JSVAL((jss && jss->session && switch_channel_ready(switch_core_session_get_channel(jss->session))) ? JS_TRUE : JS_FALSE);
 
 	return JS_TRUE;
 }