Function decodeMimeEncodedWords

cloudflare-temp-email-utils.js:151–166

(value = '')

  }

  function decodeMimeEncodedWords(value = '') {
    const source = String(value || '');
    return source.replace(/=\?([^?]+)\?([bBqQ])\?([^?]+)\?=/g, (_match, charset, encoding, encodedText) => {
      try {
        if (String(encoding).toUpperCase() === 'B') {
          return decodeBytesToString(base64ToBytes(encodedText), charset);
        }
        return decodeBytesToString(
          quotedPrintableToBytes(String(encodedText).replace(/_/g, ' '), { headerMode: true }),
          charset
        );
      } catch {
        return encodedText;
      }
    });
  }

  function base64ToBytes(value = '') {
    const normalized = String(value || '').replace(/\s+/g, '');