Improved contains function.

assets/js/helpers/contains.js

@@ -11,12 +11,14 @@ function contains(line, list) {
 
     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;
+        // Trim all lines from the list one by one
+        var cleanLine = lines[i].trim();
 
-        if (line.indexOf(lines[i]) > - 1) {
+        // If by any chance one line in the list is empty, ignore it
+        if(cleanLine === '') continue;
+
+        // If line contains the clean line return true
+        if (line.indexOf(cleanLine) > - 1) {
             return true;
         }
     }