zevdesigns

This plugin was created to show the categories for a single post in the sidebar.
The categories will be displayed in an unordered list.
You can choose the title for the widget in the sidebar if you wish.
If you’re using the plugin, please drop the link to your blog <a href="https://wordpress.org/support/topic/plugin-posts-categories-in-sidebar-using-this-widget" rel="ugc">here</a>.
Example:
<pre><code><li id="cz_post_cat-3" class="widget-container widget_cz_post_cat">
 <h3 class="widget-title">Topics</h3>
 <div class="cz-post-cats">
 <ul class="cz-cat-ul">
 <li class="cz-cat-li"><a href="http://xxx.xxx.xxx/topic/facebook/">Facebook</a></li>
 <li class="cz-cat-li"><a href="http://xxx.xxx.xxx/topic/jobs/">Jobs</a></li>
 </ul>
 </div>
</li>
</code></pre>
It uses the <code>is_single()</code> query in php so that it ONLY shows up on single posts. Not pages.
<h3>Arbitrary section</h3>
Anyone need any info here?

Post’s Categories in Sidebar

Displays the categories for a single post in the sidebar.

shawfactor

LH Fresh Content is the best plugin for requesting browsers to refresh their page. Perfect for single-page applications or pages that bring in feeds.
This plugins checks (in the backround) if the current page is out of date. If the current page is active the user is sent a message alerting them the page is out of date and givig them the option to refresh the page.
If the page is in the background the page is refreshed automatically.
Like this plugin? Please consider <a href="https://wordpress.org/support/view/plugin-reviews/lh-fresh-content/" rel="ugc">leaving a 5-star review</a>.
Love this plugin or want to help the LocalHero Project? Please consider <a href="https://lhero.org/portfolio/lh-fresh-content/" rel="nofollow ugc">making a donation</a>.

LH Fresh Content

LH Fresh Content checks if the page visitted is stale (or has been updated) and updates it in the background or alerts the visitor.

Post’s Categories in Sidebar vs LH Fresh Content