load: function( url, params, callback ) {
if ( typeof url !== "string" ) {
return this._load( url );
+
+ // Don't do a request if no elements are being requested
+ } else if ( !this.length ) {
+ return this;
}
var off = url.indexOf(" ");
}
// Matches an absolute URL, and saves the domain
- var parts = rurl.exec( s.url );
+ var parts = rurl.exec( s.url ),
+ remote = parts && (parts[1] && parts[1] !== location.protocol || parts[2] !== location.host);
// If we're requesting a remote document
// and trying to load JSON or Script with a GET
- if ( s.dataType === "script" && type === "GET" && parts
- && ( parts[1] && parts[1] !== location.protocol || parts[2] !== location.host )) {
-
+ if ( s.dataType === "script" && type === "GET" && remote ) {
var head = document.getElementsByTagName("head")[0] || document.documentElement;
var script = document.createElement("script");
script.src = s.url;
xhr.setRequestHeader("Content-Type", s.contentType);
}
- // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
- if ( s.ifModified ) {
- if ( jQuery.lastModified[s.url] ) {
- xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);
- }
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ if ( jQuery.lastModified[s.url] ) {
+ xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);
+ }
- if ( jQuery.etag[s.url] ) {
- xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]);
- }
+ if ( jQuery.etag[s.url] ) {
+ xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]);
}
+ }
// Set header so the called script knows that it's an XMLHttpRequest
- xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+ // Only send the header if it's not a remote XHR
+ if ( !remote ) {
+ xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+ }
// Set the Accepts header for the server, depending on the dataType
xhr.setRequestHeader("Accept", s.dataType && s.accepts[ s.dataType ] ?