Your retina-plugin is working fine on all Android, Mac and iOS devices, but with Windows we have some issues.
For example; we are using a Lenovo IdeaPad Yoga 2 Pro with a 13.3-inch 3.200 by 1.800 pixels display. But no retina images are shown on this device, not at 100% scaling for W8, nor at 200% scaling. Also not in IE and not in Chrome. Shouldn't it be showing retina images or am I missing something here?