Flash Fallback in IE11 - no higher resolution

i´ve tried to use the demo in IE11 with 640x480 instead of 320x240, but it seems that the video is still 320x240, scaled to 640x480. You can see it when you hit the "take a picture" button. is there any possibility to make it work with 640x480? or did anyone fix the code already so it at least prints out in 640x480 with the scaled low res picture?