Shortcodes not working in WordPress widgets – Solution

I had an issue with the plugin HiSlider not working within widgets on a WordPress installation while working perfectly in a page or a post. The solution did not lie within plugin incompatibilities or PHP versions. It was a rather simple fix.

Navigate to your theme’s functions.php and add the following line of code:

add_filter('widget_text', 'do_shortcode');

And that’s all!