Extend the GamepadHapticActuator interface to expose the trigger-rumble capability in the Web for compatible gamepads. This extension will allow web applications that take advantage of the Gamepad API to access a wider set of haptic feedback options and provide their users with a richer and more engaging experience on the Web.
Xbox-compatible gamepads like the Microsoft Xbox Wireless Controller and Razer Wolverine Ultimate come equipped with "impulse triggers" which provide haptic feedback localized to the triggers. While the Gamepad Haptics Extension proposal already provides support for haptic effects that vibrate the whole gamepad, it does not expose an interface for issuing "impulse trigger" effects.
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