The JavaScript code instructs Visitors browsers to Request the Github Pages of Anti-censorship group Greatfire and the Chinese Language Edition of the New York Times . These groups turned to a developer source code control tool to host their information with the knowledge that China was unable to block Github because of the huge cost to its technology industry.
Seems like these groups hosted content that the Chinese government didn't approve of, and tried to put it on github to avoid it being blocked. The Chinese government responded by DDoS-ing the two repositories to bend github itself into removing/blocking the content.
