https://visjs.github.io/vis-network/ is down

[ngotriet2908]

Hey team, I cannot use the script from https://visjs.github.io/vis-network/standalone/umd/vis-network.min.js anymore. Probably the page is down. I can still use script from https://unpkg.com/vis-network/standalone/umd/vis-network.min.js

Is this just technical issue and https://visjs.github.io/ will be available again soon or should we use https://unpkg.com/vis-network/standalone/umd/vis-network.min.js instead