Because currently, it hangs.
https://gajus.medium.com/how-to-terminate-a-http-server-in-node-js-d374f8b8c17f
https://dev.to/gajus/how-to-terminate-a-http-server-in-node-js-ofk#:~:text=close()%20%3A-,server.,i.e.%20when%20you%20call%20server