hubs_clone_fetch.js

var yourSceneURL = 'https://hubs.mozilla.com/LHzDxae/' // no trailing room name, only ID.
// Also works on Hubs Cloud servers but assets have to remain available (i.e no CORS, 404, etc)

// example of grabbing a local copy of assets hosted with the proxy
// curl https://hubs.mozilla.com/LHzDxae/objects.gltf | jq .nodes[].extensions.HUBS_components.media.src -r | grep uploads-prod.reticulum.io

function populateSceneFromMozGLTF(scene){
  document.querySelector('*[networked-counter]').setAttribute('networked-counter', {max: 100})
  for (var node of scene.nodes){
    console.log(node)
    var el = document.createElement("a-entity")
    AFRAME.scenes[0].appendChild(el)
    el.setAttribute("media-loader", { src: node.extensions.HUBS_components.media.src, fitToBox: true, resolve: true })
    el.setAttribute("networked", { template: "#interactable-media" } )
    if (node.translation) el.object3D.position.fromArray(node.translation)
    if (node.scale) el.object3D.scale.fromArray(node.scale)
    if (node.rotation) el.object3D.quaternion.fromArray(node.rotation)
    // somehow doesn't seem to be applied right, might be xyzw/wxyz or translating to origin first?
    el.setAttribute("pinnable", {pinned: true} )
  }
  console.log('All',scene.nodes.length,'objects loaded')
}

fetch(yourSceneURL+'objects.gltf')
    .then( response => { return response.json() } )
    .then( scene => populateSceneFromMozGLTF( scene ) )