[srott]

tested, meta is not enough

    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum scale=1.0, user-scalable=0">

    <style> 
    body {
      touch-action: none;
    }
    <style>

[nomemory]

If I put touch-action: none, the screen is frozen on my Galaxy, and I cannot zoom out to see the canvas.

I've tried touch-action manipulation instead.

Is it working better now?