Making feature image clickable in post.

Hello,

My theme automatically adds the featured image into the post. I’m trying to make it so the feature image is clickable to show the full image but so far I’ve had no luck. I have been able to make it so the image is click-able but it just reloads the post.

Here’s the code for the feature image with my changes.

<?php echo ‘<a target=”” href=”‘.get_permalink().’”>’.get_the_post_thumbnail( get_the_ID(), ‘homepage-wide’ ).’</a>’; ?>

Any help would be greatly appreciated.