Function headerString

packages/server/src/api-extension.ts:13519–13523

(name: string)

      if (!url) return;

      const headerString = (name: string): string | undefined => {
        const value = request.headers[name];
        if (value === undefined) return undefined;
        return Array.isArray(value) ? value.join(', ') : value;
      };
      recordEmbedProbe({
        ts: Date.now(),
        url,