From Xojo Documentation

Read-Only Property (As Boolean )
BooleanValue = aWebAnimator.ScaleSupported

New in 2010r4

Supported for all project types and targets.

Returns True if scale animation is supported by the browser. If False, the Scale method does nothing.

Sample Code

Only scale if supported by the browser:

If Animator1.ScaleSupported Then
Animator1.Scale(ImageView1, 200, 200, 1.5)
End If