this host does not provide crypto.subtle Ed25519, so the licence signature could not be verified. A structural check was used instead.

Warnings reference › licence.algorithm

Identifier

licence.algorithm

Raised by

The grid (core)

Since

1.0.1

What happened

Verification needs Ed25519 through crypto.subtle, and this runtime does not offer it - an insecure context, or an older browser. The key may well be genuine; this host simply cannot prove it, so only the signature's shape was checked.

The fix

Serve the page over HTTPS (a secure context), which is what crypto.subtle requires.

Reference

Covered in full at the API reference.