Ticket #21919: 21919.diff

src/wp-admin/includes/ajax-actions.php

@@ -2528 +2528 @@
                 $theme->version     = wp_kses( $theme->version, $themes_allowedtags );
                 $theme->description = wp_kses( $theme->description, $themes_allowedtags );
                 $theme->num_ratings = sprintf( _n( '(based on %s rating)', '(based on %s ratings)', $theme->num_ratings ), number_format_i18n( $theme->num_ratings ) );
+                $theme->preview_url = set_url_scheme( $theme->preview_url );
         }
 
         wp_send_json_success( $api );