This is a testharness.js-based test.
[FAIL] private to local: failed preflight.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: missing CORS headers on preflight response.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: missing PNA header on preflight response.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: missing CORS headers on final response.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: success.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: PUT success.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: no-CORS mode failed preflight.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: no-CORS mode missing CORS headers on preflight response.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: no-CORS mode missing PNA header on preflight response.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to local: no-CORS mode success.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to private: no preflight required.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
[FAIL] private to public: no preflight required.
promise_test: Unhandled rejection with value: object "TypeError: Illegal constructor"
Harness: the test ran to completion.