Augmented reality code not supporting in webview

I am able to exexute this html code in chrome browser as .HTML file.
But when I am trying to excite this file in webviewer or open the HTML file in external browser using activity starter they where showing webcam error.

<!doctype HTML>
<script src=""></script>
<script src=""></script>
  <body style='margin : 0px; overflow: hidden;'>
    <a-scene embedded arjs>
      <a-marker preset="hiro">
          <a-box position='0 0.5 0' material='color: yellow;'></a-box>
      <a-entity camera></a-entity>

Hiro Marker in attachment.

I am referring this URL to develop AR:

Please guide.

7 posts were merged into an existing topic: Webviewer showing webcam error