title: Unable to change data- value with data();
body: <p>Simple html markup</p>
  
  <pre><code>&lt;div class="this" data-info="false"&gt;&lt;/div&gt;
  
  $('.this').data('info');
  </code></pre>
  
  <p>returns correctly:  <code>false</code>  </p>
  
  <pre><code>$('.this').data('info', 'true');
  </code></pre>
  
  <p>​​
  <code>data-info</code> not changed!</p>
  
  <p><img src="https://i.stack.imgur.com/SmzI2.png" alt="enter image description here"></p>
  
  <p>Is there somthing I did it wrong? Thanks</p>