+ }
+
+ // Allow a pre-filtering function to sanitize the response
+ // s is checked to keep backwards compatibility
+ if ( s && s.dataFilter ) {
+ data = s.dataFilter( data, type );
+ }
+
+ // The filter can actually parse the response
+ if ( typeof data === "string" ) {
+ // Get the JavaScript object, if JSON is used.
+ if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {
+ // Make sure the incoming data is actual JSON
+ // Logic borrowed from http://json.org/json2.js
+ if (/^[\],:{}\s]*$/.test(data.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, "@")
+ .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, "]")
+ .replace(/(?:^|:|,)(?:\s*\[)+/g, ""))) {
+
+ // Try to use the native JSON parser first
+ if ( window.JSON && window.JSON.parse ) {
+ data = window.JSON.parse( data );
+
+ } else {
+ data = (new Function("return " + data))();
+ }