// implement the XMLHttpRequest in IE7 (can't request local files),
// so we use the ActiveXObject when it is available
// This function can be overriden by calling jQuery.ajaxSetup
- xhr: function() {
- if ( window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ) {
+ xhr: window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ?
+ function() {
return new window.XMLHttpRequest();
-
- } else {
+ } :
+ function() {
try {
return new window.ActiveXObject("Microsoft.XMLHTTP");
} catch(e) {}
- }
- },
+ },
accepts: {
xml: "application/xml, text/xml",
html: "text/html",
// Wait for a response to come back
var onreadystatechange = xhr.onreadystatechange = function( isTimeout ) {
- // The request was aborted, clear the interval and decrement jQuery.active
+ // The request was aborted
if ( !xhr || xhr.readyState === 0 ) {
- requestDone = true;
- xhr.onreadystatechange = jQuery.noop;
+ // Opera doesn't call onreadystatechange before this point
+ // so we simulate the call
+ if ( !requestDone ) {
+ complete();
+ }
- // Handle the global AJAX counter
- if ( s.global && ! --jQuery.active ) {
- jQuery.event.trigger( "ajaxStop" );
+ requestDone = true;
+ if ( xhr ) {
+ xhr.onreadystatechange = jQuery.noop;
}
// The transfer is complete and the data is available, or the request timed out
}
};
+ // Override the abort handler, if we can (IE doesn't allow it, but that's OK)
+ // Opera doesn't fire onreadystatechange at all on abort
+ try {
+ var oldAbort = xhr.abort;
+ xhr.abort = function() {
+ if ( xhr ) {
+ oldAbort.call( xhr );
+ if ( xhr ) {
+ xhr.readyState = 0;
+ }
+ }
+
+ onreadystatechange();
+ };
+ } catch(e) { }
+
// Timeout checker
if ( s.async && s.timeout > 0 ) {
setTimeout(function() {
// Send the data
try {
- xhr.send( type === "POST" || type === "PUT" ? s.data : null );
+ xhr.send( type === "POST" || type === "PUT" || type === "DELETE" ? s.data : null );
} catch(e) {
jQuery.handleError(s, xhr, null, e);
// Fire the complete handlers
// The filter can actually parse the response
if ( typeof data === "string" ) {
- // If the type is "script", eval it in global context
- if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) {
- jQuery.globalEval( data );
- }
-
// Get the JavaScript object, if JSON is used.
if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {
- // Try to use the native JSON parser first
- try {
- data = JSON.parse( data );
+ // 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))();
+ }
- } catch(e) {
- data = (new Function("return " + data))();
+ } else {
+ throw "Invalid JSON: " + data;
}
+
+ // If the type is "script", eval it in global context
+ } else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) {
+ jQuery.globalEval( data );
}
}
}
});
- } else if ( !traditional && typeof obj === "object" ) {
+ } else if ( !traditional && obj != null && typeof obj === "object" ) {
// Serialize object item.
jQuery.each( obj, function( k, v ) {
buildParams( prefix + "[" + k + "]", v );