Custom Permalinks - Redirection Issue with Trailing Slash

Overview of the issue

When using the the Custom Permalinks plugin, you may experience unnecessary 301 redirects when accessing URLs with a trailing slash.

Workaround

Please, make sure of having a full site backup of your site before proceeding.

• Open the …/wp-content/plugins/custom-permalinks/includes/class-custom-permalinks-frontend.php file.
• Replace:

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  // Append any query compenent.         $url .= strstr( $this->request_uri, '?' );           wp_safe_redirect( home_url() . '/' . $url, 301 );         exit( 0 );     } }

• With:

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  // Append any query compenent.         $url .= strstr( $this->request_uri, '?' );         $home_url = home_url();         if (substr($home_url, -1) == '/'){             wp_safe_redirect( $home_url . $url, 301 );         } else {             wp_safe_redirect( $home_url . '/' . $url, 301 );         }         exit( 0 );     } }