closes #5150

src/meta/themes.js

@@ -40,7 +40,7 @@ module.exports = function (Meta) {
 						if (err) {
 							return next();
 						}
-
+						try {
 							var configObj = JSON.parse(file.toString());
 
 							// Minor adjustments for API output
@@ -50,8 +50,11 @@ module.exports = function (Meta) {
 							} else {
 								configObj.screenshot_url = nconf.get('relative_path') + '/images/themes/default.png';
 							}
-
 							next(null, configObj);
+						} catch (err) {
+							winston.error('[themes] Unable to parse theme.json ' + theme);
+							next(null, null);
+						}
 					});
 
 				}, function (err, themes) {
@@ -59,9 +62,7 @@ module.exports = function (Meta) {
 						return callback(err);
 					}
 
-					themes = themes.filter(function (theme) {
+					themes = themes.filter(Boolean);
-						return (theme !== undefined);
-					});
 					callback(null, themes);
 				});
 			});