The Xiao Zhan boycott incident, also known as the 227 incident, is a 2020 online controversy that originated between the fans of Chinese actor Xiao Zhan and Archive of Our Own users in mainland China.[1][2] The incident started when the internet censorship system known as the Great Firewall of China blocked the fan fiction publishing platform Archive of Our Own in the country, due to concerns about the actor's fanbase regarding vulgar and explicit content on the website.[3]