Fixed bug with blacklist and whitelist.

public/js/app.js

@@ -959,6 +959,12 @@ function contains(line, list) {
     var lines = list.split('\n');
 
     for (var i = 0; i < lines.length; i++) {
+
+        // If by any chance one line in the list is empty or contains a blank space, ignore it
+        // It would probably be better to use regex here to detect blank space, but since
+        // this is not likely to be triggered anyway, there is no need for that yet.
+        if (lines[i] === '' || lines[i] === ' ') continue;
+
         if (line.indexOf(lines[i]) > -1) {
             return true;
         }