Method writeEarlyHints

lib/internal/http2/compat.js:937–961

(hints)

  }

  writeEarlyHints(hints) {
    validateObject(hints, 'hints');

    const headers = { __proto__: null };

    const linkHeaderValue = validateLinkHeaderValue(hints.link);

    for (const key of ObjectKeys(hints)) {
      if (key !== 'link') {
        const name = key.trim().toLowerCase();
        assertValidHeader(name, hints[key]);
        if (!checkIsHttpToken(name))
          throw new ERR_INVALID_HTTP_TOKEN('Header name', name);
        headers[name] = hints[key];
      }
    }

    if (linkHeaderValue.length === 0) {
      return false;
    }

    headers.Link = linkHeaderValue;

    return this.writeInformation(HTTP_STATUS_EARLY_HINTS, headers);
  }
}

function onServerStream(ServerRequest, ServerResponse,