WebGl build not starting?

Question

Unity

If you build through Build and Run, then the game starts once. Then chrome can't run it and gives this

Failed to download file Build/HTML5.data.br. Loading web pages via a file:// URL without a web server is not supported by this browser. Please use a local development web server to host Unity content, or use the Unity Build and Run option.

Answer 1

WebGL asks you to deploy a web server for it (Apache/Nginx). When you launch via Build and Run, Unity most likely launches its own server and gives you the opportunity to test there, but it does it one-time.