new.html

<!doctype HTML>
<html>
    <head>
        <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
    </head>
    <script src="https://aframe.io/releases/0.9.0/aframe.min.js"></script>
    <script src="https://rawgit.com/jeromeetienne/AR.js/master/aframe/build/aframe-ar.min.js"></script>
    <script src="https://rawgit.com/donmccurdy/aframe-extras/master/dist/aframe-extras.loaders.min.js"></script>
    
    <body style='margin : 0px; overflow: hidden;'>
        

<a-scene id="thescene" cursor="rayOrigin: mouse" embedded arjs="sourceType: webcam; trackingMethod: best;debugUIEnabled: false;">
<a-assets>
        <a-asset-item id="mega" src="scene.glb"></a-asset-item>
      </a-assets>
      
      <a-marker preset='custom' type='pattern' url='pattern-marker.patt'>
        <a-entity gltf-model="#mega" scale="0.1 0.1 0.1" position="0 0 0" rotation="0 0 0" object-n id="castle"></a-entity>
      </a-marker>
      <a-entity camera>
      </a-entity>
    </a-scene>
    </body>
</html>