imported/w3c/web-platform-tests/WebCryptoAPI/sign_verify/rsa_pss.worker.html fails on assertions like this:
FAIL RSA-PSS with SHA-384, salted round trip assert_unreached: sign error for test RSA-PSS with SHA-384, salted: 'The operation failed for an operation-specific reason' Reached unreachable code
The problem is not recent but manifests infrequently.
Updated expectations in r222572.
Please update accordingly when this issue is resolved.