I'm having a really weird issue. For example, there is a custom post 'people'. The post title is the name of the person and pretty permalinks are enabled. Say we have a person custom post with the name of 'John Smith' with a slug of 'john-smith'. If I visit the URL example.com/jo, it still redirects me to the URL example.com/john-smith.

I've never seen this behaviour in WordPress before. Does anyone know what might be causing it?

  • 1
    Possibly: codex.wordpress.org/Function_Reference/…
    – jdm2112
    Oct 11, 2016 at 14:58
  • Have you tried saving / re-saving the permalinks preferences page so the redirects are re-generated? Oct 11, 2016 at 15:10
  • 1
    For me WP has worked this way as long as I can remember (well, for real at least a year or two now). So domain.com/xxx... redirects to post for what xxx... is closest for. edit: If you had a page which url would be example.com/jo I don't think it would redirect you anywhere though... I don't see what's the problem here..
    – jimihenrik
    Oct 11, 2016 at 15:22
  • @jimihenrik - I've got quite a few sites on WP and none of them ever seem to redirect based on a partial match of the slug (just tried it now). This is issue is happening on a site built by somebody else. Oct 11, 2016 at 15:43
  • @jimihenrik - Actually just noticed this happens on one of my sites, but only on a custom post. It doesn't happen on a different site, even if the URL is only off by one character. Very weird. Oct 11, 2016 at 16:22

1 Answer 1


Add this code in your active theme's functions.php file and it should stop Wordpress guessing the source of the incomplete slug:

function no_redirect_guess_404_permalink( $header ){
    global $wp_query;

    if( is_404() )
        unset( $wp_query->query_vars['name'] );

    return $header;

add_filter( 'status_header', 'no_redirect_guess_404_permalink' );

Original answer here

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