Tracked video not showing in the 3D viewport in rendered mode When I try to composite this with my cg object it doesn't work. After completing the tracking I have set the tracking scene, but the video behind doesn't works or shows while in render mode(cycles).
 

but as you can see it does shows the tracker point but both things doesn't composite.

This is my node setup in the compositor.
To have a transparent background in the render layer, enable Film  Transparent.
I checked into the compositor and transparent render would have the checker background as shown here:


(For 2.7x)