Fatal error: Uncaught Error: Class "HTMLPurifier_StrategyHarness" not found in /home/mikaduweea/www/tache_cron/inc/htmlpurifier-4.15.0/tests/HTMLPurifier/Strategy/ValidateAttributes_IDTest.php:3 Stack trace: #0 {main} thrown in /home/mikaduweea/www/tache_cron/inc/htmlpurifier-4.15.0/tests/HTMLPurifier/Strategy/ValidateAttributes_IDTest.php on line 3