title: HTML mailto subject with '&'
body: <p>I need set subject to '&amp;' sign from client side html.
  I have following code,</p>
  
  <pre><code>&lt;a href="mailto:no-one@snai1mai1.com?subject=free chocolate&amp;Body=get free hurry."&gt;example&lt;/a&gt;
  </code></pre>
  
  <p>i need to set email subject : <code>free chocolate &amp; cake</code></p>
  
  <p>how to do this ?</p>