I don't know and am just guessing, but... https://medium.com/@evawxiao/death-by-a-thousand-cuts-software-development-behind-chinas-great-firewall-3e7109858cc6

I don't know and am just guessing, but... https://medium.com/@evawxiao/death-by-a-thousand-cuts-software-development-behind-chinas-great-firewall-3e7109858cc6 https://medium.com/@evawxiao/death-by-a-thousand-cuts-softwa... "The scope of the Great Firewall has grown along with the internet. Sadly, it’s a highly adaptable and robust system. In terms of software development, it means that a growing number of services are permanently or sporadically blocked. One of those is NPM or Node Package Manager, an important tool for Node.js. To access NPM in mainland China, you’ll have to find workarounds like using a Chinese mirror. Another is Github, a popular version control and source code management tool that is occasionally blocked or at least throttled to be excruciatingly slow."