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  • Thread Starter UnderWordPressure

    (@underwordpressure)

    Thanks to all, I’ve solved the problem by myself.

    File: wp-admin/admin-ajax.php

    ...
    ...
     require_once('includes/admin.php');
    
     //The content-type header was missing.
     //
     header('Content-Type:text/html; charset='.get_option('blog_charset'));
    
     if ( ! is_user_logged_in() ) {
    ...
    ...

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  • The topic ‘Strange behaviour with “german Umlaute” in Tags-Quicklinks’ is closed to new replies.