CONSOLE MESSAGE: Unhandled Promise Rejection: TypeError: undefined is not an object

Harness Error (FAIL), message = undefined is not an object

FAIL Attempt to inject {done: false, value: bye} via Object.prototype.then. assert_equals: The value should be "hello". expected "hello" but got "bye"
FAIL Attempt to inject value: undefined via Object.prototype.then. promise_test: Unhandled rejection with value: object "TypeError: ReadableStream chunk enqueueing in the sink failed"
TIMEOUT Attempt to inject undefined via Object.prototype.then. Test timed out
NOTRUN Attempt to inject 8.2 via Object.prototype.then. 
NOTRUN intercepting arraybuffer to text conversion via Object.prototype.then should not be possible 
NOTRUN intercepting arraybuffer to body readable stream conversion via Object.prototype.then should not be possible