src/ajax.js

   1 var jsc = jQuery.now(),
   2         rscript = /<script(.|\s)*?\/script>/gi,
   3         rselectTextarea = /select|textarea/i,
   4         rinput = /color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week/i,
   5         jsre = /\=\?(&|$)/,
   6         rquery = /\?/,
   7         rts = /(\?|&)_=.*?(&|$)/,
   8         rurl = /^(\w+:)?\/\/([^\/?#]+)/,
   9         r20 = /%20/g,
  10
  11         // Keep a copy of the old load method
  12         _load = jQuery.fn.load;
  13
  14 jQuery.fn.extend({
  15         load: function( url, params, callback ) {
  16                 if ( typeof url !== "string" && _load ) {
  17                         return _load.apply( this, arguments );
  18
  19                 // Don't do a request if no elements are being requested
  20                 } else if ( !this.length ) {
  21                         return this;
  22                 }
  23
  24                 var off = url.indexOf(" ");
  25                 if ( off >= 0 ) {
  26                         var selector = url.slice(off, url.length);
  27                         url = url.slice(0, off);
  28                 }
  29
  30                 // Default to a GET request
  31                 var type = "GET";
  32
  33                 // If the second parameter was provided
  34                 if ( params ) {
  35                         // If it's a function
  36                         if ( jQuery.isFunction( params ) ) {
  37                                 // We assume that it's the callback
  38                                 callback = params;
  39                                 params = null;
  40
  41                         // Otherwise, build a param string
  42                         } else if ( typeof params === "object" ) {
  43                                 params = jQuery.param( params, jQuery.ajaxSettings.traditional );
  44                                 type = "POST";
  45                         }
  46                 }
  47
  48                 var self = this;
  49
  50                 // Request the remote document
  51                 jQuery.ajax({
  52                         url: url,
  53                         type: type,
  54                         dataType: "html",
  55                         data: params,
  56                         complete: function( res, status ) {
  57                                 // If successful, inject the HTML into all the matched elements
  58                                 if ( status === "success" || status === "notmodified" ) {
  59                                         // See if a selector was specified
  60                                         self.html( selector ?
  61                                                 // Create a dummy div to hold the results
  62                                                 jQuery("<div />")
  63                                                         // inject the contents of the document in, removing the scripts
  64                                                         // to avoid any 'Permission Denied' errors in IE
  65                                                         .append(res.responseText.replace(rscript, ""))
  66
  67                                                         // Locate the specified elements
  68                                                         .find(selector) :
  69
  70                                                 // If not, just inject the full result
  71                                                 res.responseText );
  72                                 }
  73
  74                                 if ( callback ) {
  75                                         self.each( callback, [res.responseText, status, res] );
  76                                 }
  77                         }
  78                 });
  79
  80                 return this;
  81         },
  82
  83         serialize: function() {
  84                 return jQuery.param(this.serializeArray());
  85         },
  86
  87         serializeArray: function() {
  88                 return this.map(function() {
  89                         return this.elements ? jQuery.makeArray(this.elements) : this;
  90                 })
  91                 .filter(function() {
  92                         return this.name && !this.disabled &&
  93                                 (this.checked || rselectTextarea.test(this.nodeName) ||
  94                                         rinput.test(this.type));
  95                 })
  96                 .map(function( i, elem ) {
  97                         var val = jQuery(this).val();
  98
  99                         return val == null ?
 100                                 null :
 101                                 jQuery.isArray(val) ?
 102                                         jQuery.map( val, function( val, i ) {
 103                                                 return { name: elem.name, value: val };
 104                                         }) :
 105                                         { name: elem.name, value: val };
 106                 }).get();
 107         }
 108 });
 109
 110 // Attach a bunch of functions for handling common AJAX events
 111 jQuery.each( "ajaxStart ajaxStop ajaxComplete ajaxError ajaxSuccess ajaxSend".split(" "), function( i, o ) {
 112         jQuery.fn[o] = function( f ) {
 113                 return this.bind(o, f);
 114         };
 115 });
 116
 117 jQuery.extend({
 118         get: function( url, data, callback, type ) {
 119                 // shift arguments if data argument was omited
 120                 if ( jQuery.isFunction( data ) ) {
 121                         type = type || callback;
 122                         callback = data;
 123                         data = null;
 124                 }
 125
 126                 return jQuery.ajax({
 127                         type: "GET",
 128                         url: url,
 129                         data: data,
 130                         success: callback,
 131                         dataType: type
 132                 });
 133         },
 134
 135         getScript: function( url, callback ) {
 136                 return jQuery.get(url, null, callback, "script");
 137         },
 138
 139         getJSON: function( url, data, callback ) {
 140                 return jQuery.get(url, data, callback, "json");
 141         },
 142
 143         post: function( url, data, callback, type ) {
 144                 // shift arguments if data argument was omited
 145                 if ( jQuery.isFunction( data ) ) {
 146                         type = type || callback;
 147                         callback = data;
 148                         data = {};
 149                 }
 150
 151                 return jQuery.ajax({
 152                         type: "POST",
 153                         url: url,
 154                         data: data,
 155                         success: callback,
 156                         dataType: type
 157                 });
 158         },
 159
 160         ajaxSetup: function( settings ) {
 161                 jQuery.extend( jQuery.ajaxSettings, settings );
 162         },
 163
 164         ajaxSettings: {
 165                 url: location.href,
 166                 global: true,
 167                 type: "GET",
 168                 contentType: "application/x-www-form-urlencoded",
 169                 processData: true,
 170                 async: true,
 171                 /*
 172                 timeout: 0,
 173                 data: null,
 174                 username: null,
 175                 password: null,
 176                 traditional: false,
 177                 */
 178                 // Create the request object; Microsoft failed to properly
 179                 // implement the XMLHttpRequest in IE7 (can't request local files),
 180                 // so we use the ActiveXObject when it is available
 181                 // This function can be overriden by calling jQuery.ajaxSetup
 182                 xhr: window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ?
 183                         function() {
 184                                 return new window.XMLHttpRequest();
 185                         } :
 186                         function() {
 187                                 try {
 188                                         return new window.ActiveXObject("Microsoft.XMLHTTP");
 189                                 } catch(e) {}
 190                         },
 191                 accepts: {
 192                         xml: "application/xml, text/xml",
 193                         html: "text/html",
 194                         script: "text/javascript, application/javascript",
 195                         json: "application/json, text/javascript",
 196                         text: "text/plain",
 197                         _default: "*/*"
 198                 }
 199         },
 200
 201         ajax: function( origSettings ) {
 202                 var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings),
 203                         jsonp, status, data, type = s.type.toUpperCase();
 204
 205                 s.context = origSettings && origSettings.context || s;
 206
 207                 // convert data if not already a string
 208                 if ( s.data && s.processData && typeof s.data !== "string" ) {
 209                         s.data = jQuery.param( s.data, s.traditional );
 210                 }
 211
 212                 // Handle JSONP Parameter Callbacks
 213                 if ( s.dataType === "jsonp" ) {
 214                         if ( type === "GET" ) {
 215                                 if ( !jsre.test( s.url ) ) {
 216                                         s.url += (rquery.test( s.url ) ? "&" : "?") + (s.jsonp || "callback") + "=?";
 217                                 }
 218                         } else if ( !s.data || !jsre.test(s.data) ) {
 219                                 s.data = (s.data ? s.data + "&" : "") + (s.jsonp || "callback") + "=?";
 220                         }
 221                         s.dataType = "json";
 222                 }
 223
 224                 // Build temporary JSONP function
 225                 if ( s.dataType === "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) {
 226                         jsonp = s.jsonpCallback || ("jsonp" + jsc++);
 227
 228                         // Replace the =? sequence both in the query string and the data
 229                         if ( s.data ) {
 230                                 s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
 231                         }
 232
 233                         s.url = s.url.replace(jsre, "=" + jsonp + "$1");
 234
 235                         // We need to make sure
 236                         // that a JSONP style response is executed properly
 237                         s.dataType = "script";
 238
 239                         // Handle JSONP-style loading
 240                         var customJsonp = window[ jsonp ];
 241
 242                         window[ jsonp ] = function( tmp ) {
 243                                 data = tmp;
 244                                 jQuery.ajax.handleSuccess( s, xhr, status, data );
 245                                 jQuery.ajax.handleComplete( s, xhr, status, data );
 246
 247                                 if ( jQuery.isFunction( customJsonp ) ) {
 248                                         customJsonp( tmp );
 249
 250                                 } else {
 251                                         // Garbage collect
 252                                         window[ jsonp ] = undefined;
 253
 254                                         try {
 255                                                 delete window[ jsonp ];
 256                                         } catch( jsonpError ) {}
 257                                 }
 258
 259                                 if ( head ) {
 260                                         head.removeChild( script );
 261                                 }
 262                         };
 263                 }
 264
 265                 if ( s.dataType === "script" && s.cache === null ) {
 266                         s.cache = false;
 267                 }
 268
 269                 if ( s.cache === false && type === "GET" ) {
 270                         var ts = jQuery.now();
 271
 272                         // try replacing _= if it is there
 273                         var ret = s.url.replace(rts, "$1_=" + ts + "$2");
 274
 275                         // if nothing was replaced, add timestamp to the end
 276                         s.url = ret + ((ret === s.url) ? (rquery.test(s.url) ? "&" : "?") + "_=" + ts : "");
 277                 }
 278
 279                 // If data is available, append data to url for get requests
 280                 if ( s.data && type === "GET" ) {
 281                         s.url += (rquery.test(s.url) ? "&" : "?") + s.data;
 282                 }
 283
 284                 // Watch for a new set of requests
 285                 if ( s.global && jQuery.ajax.active++ === 0 ) {
 286                         jQuery.event.trigger( "ajaxStart" );
 287                 }
 288
 289                 // Matches an absolute URL, and saves the domain
 290                 var parts = rurl.exec( s.url ),
 291                         remote = parts && (parts[1] && parts[1] !== location.protocol || parts[2] !== location.host);
 292
 293                 // If we're requesting a remote document
 294                 // and trying to load JSON or Script with a GET
 295                 if ( s.dataType === "script" && type === "GET" && remote ) {
 296                         var head = document.getElementsByTagName("head")[0] || document.documentElement;
 297                         var script = document.createElement("script");
 298                         script.src = s.url;
 299                         if ( s.scriptCharset ) {
 300                                 script.charset = s.scriptCharset;
 301                         }
 302
 303                         // Handle Script loading
 304                         if ( !jsonp ) {
 305                                 var done = false;
 306
 307                                 // Attach handlers for all browsers
 308                                 script.onload = script.onreadystatechange = function() {
 309                                         if ( !done && (!this.readyState ||
 310                                                         this.readyState === "loaded" || this.readyState === "complete") ) {
 311                                                 done = true;
 312                                                 jQuery.ajax.handleSuccess( s, xhr, status, data );
 313                                                 jQuery.ajax.handleComplete( s, xhr, status, data );
 314
 315                                                 // Handle memory leak in IE
 316                                                 script.onload = script.onreadystatechange = null;
 317                                                 if ( head && script.parentNode ) {
 318                                                         head.removeChild( script );
 319                                                 }
 320                                         }
 321                                 };
 322                         }
 323
 324                         // Use insertBefore instead of appendChild  to circumvent an IE6 bug.
 325                         // This arises when a base node is used (#2709 and #4378).
 326                         head.insertBefore( script, head.firstChild );
 327
 328                         // We handle everything using the script element injection
 329                         return undefined;
 330                 }
 331
 332                 var requestDone = false;
 333
 334                 // Create the request object
 335                 var xhr = s.xhr();
 336
 337                 if ( !xhr ) {
 338                         return;
 339                 }
 340
 341                 // Open the socket
 342                 // Passing null username, generates a login popup on Opera (#2865)
 343                 if ( s.username ) {
 344                         xhr.open(type, s.url, s.async, s.username, s.password);
 345                 } else {
 346                         xhr.open(type, s.url, s.async);
 347                 }
 348
 349                 // Need an extra try/catch for cross domain requests in Firefox 3
 350                 try {
 351                         // Set the correct header, if data is being sent
 352                         if ( s.data || origSettings && origSettings.contentType ) {
 353                                 xhr.setRequestHeader("Content-Type", s.contentType);
 354                         }
 355
 356                         // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
 357                         if ( s.ifModified ) {
 358                                 if ( jQuery.lastModified[s.url] ) {
 359                                         xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);
 360                                 }
 361
 362                                 if ( jQuery.ajax.etag[s.url] ) {
 363                                         xhr.setRequestHeader("If-None-Match", jQuery.ajax.etag[s.url]);
 364                                 }
 365                         }
 366
 367                         // Set header so the called script knows that it's an XMLHttpRequest
 368                         // Only send the header if it's not a remote XHR
 369                         if ( !remote ) {
 370                                 xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
 371                         }
 372
 373                         // Set the Accepts header for the server, depending on the dataType
 374                         xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?
 375                                 s.accepts[ s.dataType ] + ", */*" :
 376                                 s.accepts._default );
 377                 } catch( headerError ) {}
 378
 379                 // Allow custom headers/mimetypes and early abort
 380                 if ( s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false ) {
 381                         // Handle the global AJAX counter
 382                         if ( s.global && jQuery.ajax.active-- === 1 ) {
 383                                 jQuery.event.trigger( "ajaxStop" );
 384                         }
 385
 386                         // close opended socket
 387                         xhr.abort();
 388                         return false;
 389                 }
 390
 391                 if ( s.global ) {
 392                         jQuery.ajax.triggerGlobal( s, "ajaxSend", [xhr, s] );
 393                 }
 394
 395                 // Wait for a response to come back
 396                 var onreadystatechange = xhr.onreadystatechange = function( isTimeout ) {
 397                         // The request was aborted
 398                         if ( !xhr || xhr.readyState === 0 || isTimeout === "abort" ) {
 399                                 // Opera doesn't call onreadystatechange before this point
 400                                 // so we simulate the call
 401                                 if ( !requestDone ) {
 402                                         jQuery.ajax.handleComplete( s, xhr, status, data );
 403                                 }
 404
 405                                 requestDone = true;
 406                                 if ( xhr ) {
 407                                         xhr.onreadystatechange = jQuery.noop;
 408                                 }
 409
 410                         // The transfer is complete and the data is available, or the request timed out
 411                         } else if ( !requestDone && xhr && (xhr.readyState === 4 || isTimeout === "timeout") ) {
 412                                 requestDone = true;
 413                                 xhr.onreadystatechange = jQuery.noop;
 414
 415                                 status = isTimeout === "timeout" ?
 416                                         "timeout" :
 417                                         !jQuery.ajax.httpSuccess( xhr ) ?
 418                                                 "error" :
 419                                                 s.ifModified && jQuery.ajax.httpNotModified( xhr, s.url ) ?
 420                                                         "notmodified" :
 421                                                         "success";
 422
 423                                 var errMsg;
 424
 425                                 if ( status === "success" ) {
 426                                         // Watch for, and catch, XML document parse errors
 427                                         try {
 428                                                 // process the data (runs the xml through httpData regardless of callback)
 429                                                 data = jQuery.ajax.httpData( xhr, s.dataType, s );
 430                                         } catch( parserError ) {
 431                                                 status = "parsererror";
 432                                                 errMsg = parserError;
 433                                         }
 434                                 }
 435
 436                                 // Make sure that the request was successful or notmodified
 437                                 if ( status === "success" || status === "notmodified" ) {
 438                                         // JSONP handles its own success callback
 439                                         if ( !jsonp ) {
 440                                                 jQuery.ajax.handleSuccess( s, xhr, status, data );
 441                                         }
 442                                 } else {
 443                                         jQuery.ajax.handleError( s, xhr, status, errMsg );
 444                                 }
 445
 446                                 // Fire the complete handlers
 447                                 if ( !jsonp ) {
 448                                         jQuery.ajax.handleComplete( s, xhr, status, data );
 449                                 }
 450
 451                                 if ( isTimeout === "timeout" ) {
 452                                         xhr.abort();
 453                                 }
 454
 455                                 // Stop memory leaks
 456                                 if ( s.async ) {
 457                                         xhr = null;
 458                                 }
 459                         }
 460                 };
 461
 462                 // Override the abort handler, if we can (IE doesn't allow it, but that's OK)
 463                 // Opera doesn't fire onreadystatechange at all on abort
 464                 try {
 465                         var oldAbort = xhr.abort;
 466                         xhr.abort = function() {
 467                                 if ( xhr ) {
 468                                         oldAbort.call( xhr );
 469                                 }
 470
 471                                 onreadystatechange( "abort" );
 472                         };
 473                 } catch( abortError ) {}
 474
 475                 // Timeout checker
 476                 if ( s.async && s.timeout > 0 ) {
 477                         setTimeout(function() {
 478                                 // Check to see if the request is still happening
 479                                 if ( xhr && !requestDone ) {
 480                                         onreadystatechange( "timeout" );
 481                                 }
 482                         }, s.timeout);
 483                 }
 484
 485                 // Send the data
 486                 try {
 487                         xhr.send( type === "POST" || type === "PUT" || type === "DELETE" ? s.data : null );
 488
 489                 } catch( sendError ) {
 490                         jQuery.ajax.handleError( s, xhr, null, e );
 491
 492                         // Fire the complete handlers
 493                         jQuery.ajax.handleComplete( s, xhr, status, data );
 494                 }
 495
 496                 // firefox 1.5 doesn't fire statechange for sync requests
 497                 if ( !s.async ) {
 498                         onreadystatechange();
 499                 }
 500
 501                 // return XMLHttpRequest to allow aborting the request etc.
 502                 return xhr;
 503         },
 504
 505         // Serialize an array of form elements or a set of
 506         // key/values into a query string
 507         param: function( a, traditional ) {
 508                 var s = [], add = function( key, value ) {
 509                         // If value is a function, invoke it and return its value
 510                         value = jQuery.isFunction(value) ? value() : value;
 511                         s[ s.length ] = encodeURIComponent(key) + "=" + encodeURIComponent(value);
 512                 };
 513
 514                 // Set traditional to true for jQuery <= 1.3.2 behavior.
 515                 if ( traditional === undefined ) {
 516                         traditional = jQuery.ajaxSettings.traditional;
 517                 }
 518
 519                 // If an array was passed in, assume that it is an array of form elements.
 520                 if ( jQuery.isArray(a) || a.jquery ) {
 521                         // Serialize the form elements
 522                         jQuery.each( a, function() {
 523                                 add( this.name, this.value );
 524                         });
 525
 526                 } else {
 527                         // If traditional, encode the "old" way (the way 1.3.2 or older
 528                         // did it), otherwise encode params recursively.
 529                         for ( var prefix in a ) {
 530                                 buildParams( prefix, a[prefix], traditional, add );
 531                         }
 532                 }
 533
 534                 // Return the resulting serialization
 535                 return s.join("&").replace(r20, "+");
 536         }
 537 });
 538
 539 function buildParams( prefix, obj, traditional, add ) {
 540         if ( jQuery.isArray(obj) ) {
 541                 // Serialize array item.
 542                 jQuery.each( obj, function( i, v ) {
 543                         if ( traditional || /\[\]$/.test( prefix ) ) {
 544                                 // Treat each array item as a scalar.
 545                                 add( prefix, v );
 546
 547                         } else {
 548                                 // If array item is non-scalar (array or object), encode its
 549                                 // numeric index to resolve deserialization ambiguity issues.
 550                                 // Note that rack (as of 1.0.0) can't currently deserialize
 551                                 // nested arrays properly, and attempting to do so may cause
 552                                 // a server error. Possible fixes are to modify rack's
 553                                 // deserialization algorithm or to provide an option or flag
 554                                 // to force array serialization to be shallow.
 555                                 buildParams( prefix + "[" + ( typeof v === "object" || jQuery.isArray(v) ? i : "" ) + "]", v, traditional, add );
 556                         }
 557                 });
 558
 559         } else if ( !traditional && obj != null && typeof obj === "object" ) {
 560                 // Serialize object item.
 561                 jQuery.each( obj, function( k, v ) {
 562                         buildParams( prefix + "[" + k + "]", v, traditional, add );
 563                 });
 564
 565         } else {
 566                 // Serialize scalar item.
 567                 add( prefix, obj );
 568         }
 569 }
 570
 571 jQuery.extend( jQuery.ajax, {
 572
 573         // Counter for holding the number of active queries
 574         active: 0,
 575
 576         // Last-Modified header cache for next request
 577         lastModified: {},
 578         etag: {},
 579
 580         handleError: function( s, xhr, status, e ) {
 581                 // If a local callback was specified, fire it
 582                 if ( s.error ) {
 583                         s.error.call( s.context, xhr, status, e );
 584                 }
 585
 586                 // Fire the global callback
 587                 if ( s.global ) {
 588                         jQuery.ajax.triggerGlobal( s, "ajaxError", [xhr, s, e] );
 589                 }
 590         },
 591
 592         handleSuccess: function( s, xhr, status, data ) {
 593                 // If a local callback was specified, fire it and pass it the data
 594                 if ( s.success ) {
 595                         s.success.call( s.context, data, status, xhr );
 596                 }
 597
 598                 // Fire the global callback
 599                 if ( s.global ) {
 600                         jQuery.ajax.triggerGlobal( s, "ajaxSuccess", [xhr, s] );
 601                 }
 602         },
 603
 604         handleComplete: function( s, xhr, status ) {
 605                 // Process result
 606                 if ( s.complete ) {
 607                         s.complete.call( s.context, xhr, status );
 608                 }
 609
 610                 // The request was completed
 611                 if ( s.global ) {
 612                         jQuery.ajax.triggerGlobal( s, "ajaxComplete", [xhr, s] );
 613                 }
 614
 615                 // Handle the global AJAX counter
 616                 if ( s.global && jQuery.ajax.active-- === 1 ) {
 617                         jQuery.event.trigger( "ajaxStop" );
 618                 }
 619         },
 620
 621         triggerGlobal: function( s, type, args ) {
 622                 (s.context && s.context.url == null ? jQuery(s.context) : jQuery.event).trigger(type, args);
 623         },
 624
 625         // Determines if an XMLHttpRequest was successful or not
 626         httpSuccess: function( xhr ) {
 627                 try {
 628                         // IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
 629                         return !xhr.status && location.protocol === "file:" ||
 630                                 // Opera returns 0 when status is 304
 631                                 ( xhr.status >= 200 && xhr.status < 300 ) ||
 632                                 xhr.status === 304 || xhr.status === 1223 || xhr.status === 0;
 633                 } catch(e) {}
 634
 635                 return false;
 636         },
 637
 638         // Determines if an XMLHttpRequest returns NotModified
 639         httpNotModified: function( xhr, url ) {
 640                 var lastModified = xhr.getResponseHeader("Last-Modified"),
 641                         etag = xhr.getResponseHeader("Etag");
 642
 643                 if ( lastModified ) {
 644                         jQuery.ajax.lastModified[url] = lastModified;
 645                 }
 646
 647                 if ( etag ) {
 648                         jQuery.ajax.etag[url] = etag;
 649                 }
 650
 651                 // Opera returns 0 when status is 304
 652                 return xhr.status === 304 || xhr.status === 0;
 653         },
 654
 655         httpData: function( xhr, type, s ) {
 656                 var ct = xhr.getResponseHeader("content-type") || "",
 657                         xml = type === "xml" || !type && ct.indexOf("xml") >= 0,
 658                         data = xml ? xhr.responseXML : xhr.responseText;
 659
 660                 if ( xml && data.documentElement.nodeName === "parsererror" ) {
 661                         jQuery.error( "parsererror" );
 662                 }
 663
 664                 // Allow a pre-filtering function to sanitize the response
 665                 // s is checked to keep backwards compatibility
 666                 if ( s && s.dataFilter ) {
 667                         data = s.dataFilter( data, type );
 668                 }
 669
 670                 // The filter can actually parse the response
 671                 if ( typeof data === "string" ) {
 672                         // Get the JavaScript object, if JSON is used.
 673                         if ( type === "json" || !type && ct.indexOf("json") >= 0 ) {
 674                                 data = jQuery.parseJSON( data );
 675
 676                         // If the type is "script", eval it in global context
 677                         } else if ( type === "script" || !type && ct.indexOf("javascript") >= 0 ) {
 678                                 jQuery.globalEval( data );
 679                         }
 680                 }
 681
 682                 return data;
 683         }
 684
 685 });
 686
 687 // For backwards compatibility
 688 jQuery.extend( jQuery.ajax );