Chrome 40 Bug - Blurry 1X Canvas on HiDPI Screens

This canvas is displayed at 1X (no scaling), and has the following style:

canvas {
	image-rendering: -webkit-optimize-contrast; /* Safari */
	image-rendering: -moz-crisp-edges; /* Firefox */
	image-rendering: -o-crisp-edges; /* Opera */
	image-rendering: pixelated; /* Chrome 39+ */
	-ms-interpolation-mode: nearest-neighbor;	/* IE */
}
		

On Safari and Firefox, the canvas is crisp and sharp on HiDPI screens. On Chrome 40, it is blurry.