fixing closing button issue

assets/js/main.js

@@ -289,24 +289,21 @@
 
 				var $this = $(this);
 
-				// Close.
-					$('<div class="close">Close</div>')
-						.appendTo($this)
-						.on('click', function() {
-							location.hash = '';
-						});
-
-				// Handle the × button click
-					$this.find('button.close').on('click', function(event) {
+				// Handle the × button click and touchend for mobile compatibility
+				$this.find('button.close').each(function() {
+					var closeHandler = function(event) {
 						event.preventDefault();
 						event.stopPropagation();
 						location.hash = '';
-					});
+					};
+					$(this).on('click', closeHandler);
+					$(this).on('touchend', closeHandler);
+				});
 
 				// Prevent clicks from inside article from bubbling.
-					$this.on('click', function(event) {
-						event.stopPropagation();
-					});
+				$this.on('click', function(event) {
+					event.stopPropagation();
+				});
 
 			});