MOD remove throwError, always throw cb syntax errors

(rebased)

ADD tests for throwError cb

Author: basos9

src/jquery.jsonp.js

@@ -22,13 +22,8 @@
 	}
 
 	// Call if defined
-	function callIfDefined( method , object , parameters , returnFlag ) {
-		try {
-			returnFlag = method && method.apply( object.context || object , parameters );
-		} catch( _ ) {
-			returnFlag = !1;
-		}
-		return returnFlag;
+	function callIfDefined( method , object , parameters ) {
+		return method && method.apply && method.apply( object.context || object , parameters );
 	}
 
 	// Give joining character given url

test/unit.js

@@ -96,3 +96,26 @@ test( "stress test", function() {
 		});
 	}
 });
+
+
+test( "callback error", function() {
+		expect(2);
+
+		$.jsonp({
+			url: "http://gdata.youtube.com/feeds/api/users/julianaubourg?callback=?",
+			cache: true,
+			success: function() {
+				try {
+					return eval("var j = 7 + // syntax error");
+				}
+				catch(e) {
+					ok( true, "Syntax error thrown");
+				}
+			},
+			complete: function() {
+				start();
+			}
+		});
+		stop();
+		ok(true, "done"); // to resume tests
+});