}
};
- // Override the abort handler, if we can (IE doesn't allow it, but that's OK)
+ // Override the abort handler, if we can (IE 6 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 ) {
+ // xhr.abort in IE7 is not a native JS function
+ // and does not have a call property
+ if ( xhr && oldAbort.call ) {
oldAbort.call( xhr );
}