- if ( status == "success" ) {
- // Cache Last-Modified header, if ifModified mode.
- var modRes;
- try {
- modRes = xhr.getResponseHeader("Last-Modified");
- } catch(e) {} // swallow exception thrown by FF if header is not available
-
- if ( s.ifModified && modRes )
- jQuery.lastModified[s.url] = modRes;
-