leaving tags box will create tag

public/src/modules/composer/tags.js

@@ -35,6 +35,17 @@ define('composer/tags', function() {
 			select: function(event, ui) {
 				// when autocomplete is selected from the dropdown simulate a enter key down to turn it into a tag
 				// http://stackoverflow.com/a/3276819/583363
+				triggerEnter(input);
+			}
+		});
+
+		input.attr('tabIndex', tagEl.attr('tabIndex'));
+		input.on('blur', function() {
+			triggerEnter(input);
+		})
+	};
+
+	function triggerEnter(input) {
 		var e = jQuery.Event('keydown');
 		e.which = 13;
 		e.keyCode = 13;
@@ -42,10 +53,6 @@ define('composer/tags', function() {
 			input.trigger(e);
 		}, 100);
 	}
-		});
-
-		input.attr('tabIndex', tagEl.attr('tabIndex'));
-	};
 
 	function addTags(tags, tagEl) {
 		if (tags && tags.length) {