Fix

It was required in the past (relevant thread was once posted in the Forum).

install/ubuntu/16.04/pma/apache.conf

@@ -15,7 +15,7 @@ Alias /phpmyadmin /usr/share/phpmyadmin
 		php_admin_flag allow_url_fopen Off
 		php_value include_path .
 		php_admin_value upload_tmp_dir /var/lib/phpmyadmin/tmp
-		php_admin_value open_basedir /usr/share/phpmyadmin/:/etc/phpmyadmin/:/var/lib/phpmyadmin/:/usr/share/php/php-gettext
+		php_admin_value open_basedir /usr/share/phpmyadmin/:/etc/phpmyadmin/:/var/lib/phpmyadmin/:/usr/share/php/php-gettext:/usr/share/javascript/
 	</IfModule>
 
 </Directory>