The request / response that are contrary to the Web firewall security policies have been blocked.

Detect time	2025-05-13 19:30:47
Detect client IP	10.152.1.112 (x-forward-for : 18.218.137.145 )
Detect URL	http://xn--oi3bn8n8wbba250am4k7qcfvh.xn--kg-j96is77cveb.kr/data/course/49_main_thumbnail_pc