This is a testharness.js-based test.
[FAIL] ORB should block opaque text/plain with nosniff: fetch(..., {mode: "no-cors"})
  assert_unreached: Should have rejected: fetch(..., {mode: "no-cors"}) Reached unreachable code
[FAIL] ORB should block opaque-response-blocklisted MIME type with nosniff: fetch(..., {mode: "no-cors"})
  assert_unreached: Should have rejected: fetch(..., {mode: "no-cors"}) Reached unreachable code
[FAIL] ORB should block opaque response with empty Content-Type and nosniff: fetch(..., {mode: "no-cors"})
  assert_unreached: Should have rejected: fetch(..., {mode: "no-cors"}) Reached unreachable code
Harness: the test ran to completion.