add tests and remove build error

test/test-urlfilter.html

@@ -278,7 +278,7 @@
 
   <section class="default-form-section" data-event="submit">
     <form class="urlfilter all_elm">
-       <!-- To SERIALIZE the element must have a name attribute. -->
+      <!-- To SERIALIZE the element must have a name attribute. -->
       <input name="k1"><input id="k2">
       <input type="text" name=" _&lt;&quote;高&quote;gt;%/=?;,@$+" value=" _&lt;&quote;高&quote;gt;%/=?;,@$+">
       <input type="text" id="textbox" name="textbox" value="dummy"><br>