(function() {
				var request, b = document.body, c = 'className', cs = 'customize-support', rcs = new RegExp('(^|\\s+)(no-)?'+cs+'(\\s+|$)');

						request = true;
		
				b[c] = b[c].replace( rcs, ' ' );
				// The customizer requires postMessage and CORS (if the site is cross domain)
				b[c] += ( window.postMessage && request ? ' ' : ' no-' ) + cs;
			}());