I am creating a search bar using Bootstrap#input-groups-buttons
  <form class="navbar-form navbar-left" action=".">
      <div class="input-group">
        <input type="text" class="form-control" name="q" placeholder="Search ...">
        <span class="input-group-btn">
          <button class="btn btn-default" type="button">Go!</button>
        </span>
      </div><!-- /input-group -->
  </form>
When I press Enter, the form could be submitted successfully,
http://127.0.0.1:8000/?q=test
However, when I click the button "Go", nothing happened.
How could I submit the form data when button is click?
 
     
     
    