@blockcerts/hashlink-verifier/lib/esm/src/hashlink/crypto.js

Handling hashlinks in Blockcerts

// WebCrypto polyfill
import isomorphicCrypto from '@trust/webcrypto';
let crypto;
if (typeof self !== 'undefined' && (self.crypto || self.msCrypto)) {
    crypto = self.crypto || self.msCrypto;
}
else {
    crypto = isomorphicCrypto;
}
export default crypto;