Function getClientLanguage

www/utils/ga4.ts:236–246

(request: Request)

}

function getClientLanguage(request: Request): string | undefined {
  const acceptLanguage = request.headers.get("accept-language");
  if (acceptLanguage == null) {
    return;
  }
  const code = acceptLanguage.split(/[^a-z-]+/i).filter(Boolean).shift();
  if (code == null) {
    return undefined;
  }
  return code.toLowerCase();
}

function getClientHeaders(request: Request): Headers {
  const headerList = [