document.addEventListener("DOMContentLoaded", function(){
    const canvas = document.getElementById("canvas");
    const ctx = canvas.getContext("2d");
    var src = document.getElementById("current_color_stream");
    var img = new Image();
    img.src = src.src;
    img.onload = function() {
        ctx.drawImage(img, 0, 0);
    }
});