When I call the download function with the following url I get an error, why ?
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAfQAAAH0CAYAAADL1t+KAAAABHNCSVQICAgIfAhkiAAAAAFzUkdCAK7OHOkAACAASURBVHic7N15vNxVff/x1+c7d83NwuaGARICZGFL7twQ0arYakXFrYpaRetSt9ZqheICJHPmJmyiaEtbl59LrdYqaCuKuKHSVkXIvTeyZYFsLEJA1iQ3ucvM+fz+mEm4d...(shortened)```