Language: JavaScript
Label: safe
CWE: CWE-331 \u2014 Insufficient Entropy
The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

Code:
    CryptorHeader.from = function (id, metadata) {
        if (id === CryptorHeader.LEGACY_IDENTIFIER)
            return;
        return new CryptorHeaderV1(id, metadata.byteLength);
    };