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:
    CryptoModule.prototype.getCryptor = function (header) {
        if (header === '') {
            var cryptor = this.getAllCryptors().find(function (c) { return c.identifier === ''; });
            if (cryptor)
                return cryptor;
            throw new Error('unknown cryptor error');
        }
        else if (header instanceof CryptorHeaderV1) {
            return this.getCryptorFromId(header.identifier);
        }
    };