Bootstrap Collapse not working properly (Hide Not working)
<p>I am using bootstrap collapse functionality is not working properly in our IBM web portal.
It working fine on “show” functionality but not working in  “Hide” functionality.</p>

<pre><code>&lt;a href="#demo" data-toggle="collapse"&gt;&lt;span class=”icon”&gt;Collapsible&lt;/span&gt;&lt;/a&gt;

&lt;div id="demo" class="collapse"&gt;
Sample Code 
&lt;/div&gt;
</code></pre>

<p>I see in console window the “<strong>area-expanded</strong>” value did not change in our collapse and also did not change class name like “<strong>collapsed</strong>” and collapse <strong>in</strong>”.</p>

<p>How to fix it .</p>