Release Notes and Known Issues

What's new in Alexa Web API for Games

Version 1.1 introduces motion and sensing APIs to enable you to add motion to your games on the Echo Show 10. For more details about these extensions, see Web API Extensions for Games Overview.

  1. Echo Show 8 is reporting an incorrect window.devicePixelRatio relative to window.innerWidth. When computing the physical pixels of the device by multiplying the innerWidth by the devicePixelRatio, the result is off by 1, i.e., computed 1281 px vs true 1280 px.

  2. On FireTV devices, when exiting with the back button on the remote, a sessionEndedRequest is sometimes not sent to the skill.

  3. In-skill purchase flow sometimes does not resume the skill properly. Note: On FireTV devices, it's necessary to respond to the Connections.Response with Alexa.Presentation.HTML.Start.

  4. ThreeJS has a shader compiler bug with Echo Show (1st Gen and 2nd Gen) devices. See for a workaround.

  5. Wake word response set via skill manifest continues to persist on device outside of skill session.

Last updated: May 03, 2023