How do I download the graph with the correct pointer value?

I try download of graph with code below:
$(".test").append(`<a download href='${obj.canvas.toDataURL("image/png")}'>Test</a><br>`);
but when I download the graphic it has the wrong pointer value.

Is the chart showing the correct value when the button is pressed? Is there an animation involved?

Can you link to the page that the chart is on or put an example online? What happens if you put a regular, static link on the page for example:

<a href="#" onclick="location.href = myObject.canvas.toDataURL('image/png')">Test</a>

PS If the canvas is supposed to be white, try clearing it to white before drawing:

m = new RGraph.Meter({
    id: 'cvs',
    min: 0,
    max: 200,
    value: 98,
    options: {
    }
}).on('beforedraw', function (obj)
{
    RGraph.clear(obj.canvas, 'white');
}).draw();