This is an example of working with AR on the web using Babylon.js. When a plane is detected a ring will appear. Tap the screen to place a box in the middle of the ring.
You will need to have Node.js installed.
Then type the following in a terminal:
npm install
npm run start
This example needs to be run on a WebXR capable device that supports AR. On Android it requires Chrome v79 or above and on iOS you need to run it on the Mozilla XR Viewer app. Make sure the desktop and smartphone are connected to the same WiFi network and enter the following http://<IP address of desktop>:1234
in the address bar of the smartphone browser.