Release Notes and Known Issues: Alexa Web API for Games

Please refer to the following list for release notes and known issues.

Supported devices (July 21, 2020)

The following devices are supported for this release.

Echo Family Devices

  • Echo Show (1st Gen)
  • Echo Show (2nd Gen)
  • Echo Show 5
  • Echo Show 8

Fire TV Devices

  • Fire TV Stick 4K
  • Fire TV (3rd Gen)
  • Fire TV Cube (1st Gen)
  • Fire TV Cube (2nd Gen)

Known issues (July 21, 2020)

  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 1281px vs true 1280px.

  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 will sometimes not resume the skill properly. Note: On FireTV devices, it is 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.

Other resources