Duplicate attribute type button

Duplicate attribute type="button"

index2.html

@@ -912,7 +912,7 @@
                     <div class="input-group">
                       <input type="text" name="message" placeholder="Type Message ..." class="form-control">
                           <span class="input-group-btn">
-                            <button type="button" type="button" class="btn btn-warning btn-flat">Send</button>
+                            <button type="button" class="btn btn-warning btn-flat">Send</button>
                           </span>
                     </div>
                   </form>