title: Bootstrap3 navigation toggle not working in WordPress
body: <p>I've built a test site based using Bootstrap3, however the toggle doesn't work and I can't find any errors. The JS script is installed correctly and I've added the code to the functions file linking to the <code>WP_nav_walker</code> file available on GitHub. The header file code is:</p>
  
  <pre><code>   &lt;?php
     wp_nav_menu( array(
     'menu' =&gt; 'primary',
     'theme_location' =&gt; 'primary',
     'depth' =&gt; 2,
    'container' =&gt; 'div',
    'container_class' =&gt; 'collapse navbar-collapse navbar-ex1-collapse',
     'menu_class' =&gt; 'nav navbar-nav',
     'fallback_cb' =&gt; 'wp_bootstrap_navwalker::fallback',
     'walker' =&gt; new wp_bootstrap_navwalker())
     );
      ?&gt;
  </code></pre>
  
  <p>And I've added this to the functions doc:</p>
  
  <pre><code>// Register Custom Navigation Walker
  add_action( 'init', 'register_my_menu' );
  require_once('wp_bootstrap_navwalker.php');
  
  connecting to wp_bootstrap_navwalker.php
  </code></pre>
  
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