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

Detect time	2025-05-13 20:23:52
Detect client IP	10.152.1.160 (x-forward-for : 3.12.151.104 )
Detect URL	http://xn--2o2bn90a.xn--kg-jz1j901a9vcw7s0ie.kr/data/course/20048_main_thumbnail_pc