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Resolved in: 4.5.1

Overview of the issue

If your WordPress installation is in a subdirectory, you may find that the Translation Tools tab is empty when you go to WPMLTranslation Management.

When you open the browser console, you see an error similar to:

Mixed Content: The page at ‘/wp-admin/admin.php?page=wpml-translation-management%2Fmenu%2Fmain.php&sm=ate-ams’ was loaded over HTTPS, but requested an insecure script ?wpml-app=ate-widget&ver=2.11.0’. This request has been blocked; the content must be served over HTTPS.


This issue comes from a server configuration, and we recommend that you contact them. When your server requests a URL without a trailing slash (e.g., it redirects to a URL with a trailing slash but without an HTTPS (e.g

In the meantime, you can use the following workaround:

  1. Make a full backup of your site before proceeding.
  2. Open your functions.php theme file.
  3. Add the following snippet:
    add_filter('site_url', function ( $site_url ){
    	return rtrim( $site_url, '/' ) . '/';