404 error on second page load for child-pages

I never found the real reason for this issue. However this “bugfix” did solve the issue for me: add_action( ‘template_redirect’, ‘handle_strange_bug’, 10 ); // “Fixes” the strange bug… function handle_strange_bug() { global $post; $post_id = 123; // This is the post that makes problems. /* ===== Start of the bugfix. * * If the $post->ID … Read more

broken permalinks in responsive layout

Your theme probably uses more than one menu – but which ones is visible depends on whether you are viewing the website on a big or a small screen. Check the source files and make sure the link is the same in both menus.

[Plugin leenk.me]modify get_the_title

“I want to modify the get_the_title function” — Do you mean you want to modify WordPress’s get_the_title(), or simply modify what it returns? If the former, I must strongly advise against it. You shouldn’t hack core files in WordPress. If you want to modify what it returns, use the the_title filter.