Hong Kong court to rule on internet ban of popular protest anthem

Hong Kong government seeks to ban protest song "Glory to Hong Kong" from the internet over claims it defames China's anthem and promotes Hong Kong independence.
Western tech firms like Google resist requests to remove song but may have to comply if court orders ban.
Critics worry the potential ban signals further erosion of freedom of expression in Hong Kong under Beijing's national security law.
Hong Kong's civil liberties and independent institutions have declined amid Beijing's crackdown on dissent in the city.
Government argues song poses threat to national security and could lead to secession, a serious offense under mainland law.