title: why tabs not working in bootstrap 4.0.0
body: <p>using the bootstrap tabs control.  It displays correctly in bootstrap 3.3.7
  <a href="https://jsfiddle.net/steve_richter/evn2ncbo/7/" rel="nofollow noreferrer">https://jsfiddle.net/steve_richter/evn2ncbo/7/</a></p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  &lt;html lang="en"&gt;
  &lt;head&gt;
    &lt;title&gt;Bootstrap Example&lt;/title&gt;
    &lt;meta charset="utf-8"&gt;
    &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;
    &lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"&gt;
    &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"&gt;&lt;/script&gt;
    &lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"&gt;&lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
  
  &lt;div class="container"&gt;
    &lt;h3&gt;Tabs&lt;/h3&gt;
    &lt;ul class="nav nav-tabs"&gt;
      &lt;li class="active"&gt;&lt;a href="#"&gt;Home&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Menu 1&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Menu 2&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Menu 3&lt;/a&gt;&lt;/li&gt;
    &lt;/ul&gt;
    &lt;br&gt;
    &lt;p&gt;&lt;strong&gt;Note:&lt;/strong&gt; This example shows how to create a basic navigation tab. It is not toggleable/dynamic yet (you can't click on the links to display different content)- see the last example in the Bootstrap Tabs and Pills Tutorial to find out how this can be done.&lt;/p&gt;
  &lt;/div&gt;
  
  &lt;/body&gt;
  &lt;/html&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>but incorrectly in bootstrap 4.0.0
  <a href="https://jsfiddle.net/steve_richter/evn2ncbo/1/" rel="nofollow noreferrer">https://jsfiddle.net/steve_richter/evn2ncbo/1/</a></p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  &lt;html lang="en"&gt;
  &lt;head&gt;
    &lt;title&gt;Bootstrap Example&lt;/title&gt;
    &lt;meta charset="utf-8"&gt;
    &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;
    &lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"&gt;
    &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"&gt;&lt;/script&gt;
    &lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"&gt;&lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
  
  &lt;div class="container"&gt;
    &lt;h3&gt;Tabs&lt;/h3&gt;
    &lt;ul class="nav nav-tabs"&gt;
      &lt;li class="active"&gt;&lt;a href="#"&gt;Home&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Menu 1&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Menu 2&lt;/a&gt;&lt;/li&gt;
      &lt;li&gt;&lt;a href="#"&gt;Menu 3&lt;/a&gt;&lt;/li&gt;
    &lt;/ul&gt;
    &lt;br&gt;
    &lt;p&gt;&lt;strong&gt;Note:&lt;/strong&gt; This example shows how to create a basic navigation tab. It is not toggleable/dynamic yet (you can't click on the links to display different content)- see the last example in the Bootstrap Tabs and Pills Tutorial to find out how this can be done.&lt;/p&gt;
  &lt;/div&gt;
  
  &lt;/body&gt;
  &lt;/html&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>Why would the older version work and not the current one?</p>
  
  <p>thanks,</p>