Function callback

static/js/learnpython.js:20–24

( status, statusText, responses, responseHeaders )

			return {
				send: function( _, complete ) {
					function callback( status, statusText, responses, responseHeaders ) {
						xdr.onload = xdr.onerror = xdr.ontimeout = jQuery.noop;
						xdr = undefined;
						complete( status, statusText, responses, responseHeaders );
					}
					xdr = new XDomainRequest();
					xdr.open( s.type, s.url );
					xdr.onload = function() {