If your school uses a firewall or blocks certain domains, you'll need to allow certain URLs to ensure Hello World CS works as it should. Visit the Hello World CS Network Access Requirements page to see a full list.
WebGL helps render interactive 2D and 3D graphics within your web browser. Users will need an up-to-date browser that supports WebGL. Most modern browsers have WebGL support, but we recommend using the latest version of Google Chrome, Firefox or Safari.
See the following links for additional guidance about using CoSpaces on your devices.