This is a testharness.js-based test. [FAIL] opening unidirectional stream before ready promise_test: Unhandled rejection with value: object "NetworkError: Failed to execute 'createUnidirectionalStream' on 'WebTransport': No connection." [FAIL] opening bidirectional stream before ready promise_test: Unhandled rejection with value: object "NetworkError: Failed to execute 'createBidirectionalStream' on 'WebTransport': No connection." [FAIL] server initiated closure while opening unidirectional stream before ready promise_rejects_dom: function "function() { throw e; }" threw object "NetworkError: Failed to execute 'createUnidirectionalStream' on 'WebTransport': No connection." that is not a DOMException InvalidStateError: property "code" is equal to 19, expected 11 [FAIL] server initiated closure while opening bidirectional stream before ready promise_rejects_dom: function "function() { throw e; }" threw object "NetworkError: Failed to execute 'createBidirectionalStream' on 'WebTransport': No connection." that is not a DOMException InvalidStateError: property "code" is equal to 19, expected 11 Harness: the test ran to completion.