CanvasPixelData converts to empty QVariant when passed as parameter to native method

An example demonstrates:

var ctx = canvas.getContext('2d');
var imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
nativeMethod(imageData.data, imageData.width, imageData.height);

Internally the Qt5V8 method "toVariant" is called to convert the array to a QVariant. Because this object is actually a custom type (and not a proper V8 Array type) it requires special handling which isn't implemented. Instead an empty QVariant is returned.

var copied = new Array();
for( var x=0; x < imageData.data.length; x++ )
    copied[x] = imageData.data[x];
nativeMethod(copied, imageData.width, imageData.height);

This works as expected since the data is moved into a V8 "Array" first, but I'd rather not have to do this for hopefully obvious reasons.