Animate scale for squash & stretch effect

Is it possible to animate 'Scale' of an object to get squash & stretch effect?
Like when a box drops from above and touch the ground,
it squash a few frames in Z-axis then back to normal.
If not, is there workaround to get the result?

I've tried animate the object itself or via a bone in pose mode, but 'scale' keys don't do anything in web player.

Hi,

Is it possible to animate 'Scale' of an object to get squash & stretch effect?
Like when a box drops from above and touch the ground,
it squash a few frames in Z-axis then back to normal.

Currently Blend4Web supports only uniform scale.

If not, is there workaround to get the result?

Perhaps you could use skeletal animation with two moving bones in a rig. Scaling of pose bones must be uniform as well.