Harness status: Error

Unhandled rejection: action_sequence() is not implemented by testdriver-vendor.js

Error: action_sequence() is not implemented by testdriver-vendor.js
    at Object.action_sequence (https://xn--n8j6ds53lwwkrqhv28a.wpt.live/resources/testdriver.js:1636:19)
    at Object.action_sequence (https://xn--n8j6ds53lwwkrqhv28a.wpt.live/resources/testdriver.js:721:48)
    at Actions.send (https://xn--n8j6ds53lwwkrqhv28a.wpt.live/resources/testdriver-actions.js:99:26)
    at inject_input (https://xn--n8j6ds53lwwkrqhv28a.wpt.live/pointerlock/pointerlock_shadow.html:90:10)
    at onload (https://xn--n8j6ds53lwwkrqhv28a.wpt.live/pointerlock/pointerlock_shadow.html:15:31)