StageWebView Doesn't support Canvas imageSmoothing

When resizing images on HTML canvas they appear very pixelated as it seems ImageSmoothing is not supported.

  var canva2s = document.getElementById("mapCanvas");

        var ctx = canva2s.getContext("2d");

        ctx.mozImageSmoothingEnabled = true;

        ctx.webkitImageSmoothingEnabled = true;

        ctx.msImageSmoothingEnabled = true;

        ctx.imageSmoothingEnabled = true;

Doesn't make a difference.

If you view this URL through StageWebView, you'll see the problem Zoomify example.

Changing to NativeMode doesn't work either, as it doesn't seem to even load the page!?