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

Detect time	2025-05-13 18:55:08
Detect client IP	10.152.1.112 (x-forward-for : 3.143.7.73 )
Detect URL	http://xn--or3bi2d3zi.xn--kg-jz1j901a9vcw7s0ie.kr/data/course/15_main_thumbnail_pc