title: How to refresh value in angular html binding?
body: <p>I have this html</p>
  
  <pre><code>&lt;div ng-bind-html="safeHtml"&gt;&lt;/div&gt;
  &lt;button ng-click="refresh()"&gt;refresh&lt;/button&gt;
  </code></pre>
  
  <p>how refresh function should look like so it refresh the value.</p>