Rank Math SEO - URL's With Special Characters Lead To 404 Errors

Overview of the issue

You may experience improper redirections issues and potential 404 errors when Rank Math SEO plugin is installed, particularly with URLs containing special characters as double quotes.

Workaround

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

• Open …/wp-content/plugins/seo-by-rank-math/includes/modules/woocommerce/class-product-redirection.php file.
• Look for line 110.
• Replace:

  		$new_link = implode( '/', array_map( 'rawurlencode', explode( '/', ltrim( $new_link, '/' ) ) ) ); // encode everything but slashes.
  

• With:

  		if ((preg_match('/%[0-9A-Fa-f]{2}/', $new_link))) {
  			$new_link = rawurldecode($new_link);
  		}
  
  		$new_link = implode( '/', array_map( 'rawurlencode', explode( '/', ltrim( $new_link, '/' ) ) ) ); // encode everything but slashes.