我用这样的代码验证了sessionCookie。

node.js
export const sign = functions_address.https.onCall(
  (data,conext) =>{
      // get a sessionCookie
      const sessionCookieString = data.cookies;
      const payload_j = data.payload;
      
      log(sessionCookieString);
      admin.auth().verifySessionCookie(sessionCookieString, true).then((decodeclaims) =>{
        
          //Action

      }).catch ((error) => {
      throw new functions.https.HttpsError("Unauthenticated", "SessionCookie Failed.");
      });

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但是，它甚至没有显示日志（sessionCookieString）就冻结了。
在C#中，我们这样称呼它。
我已经确认里面的东西不是空的。

var d_payload = new Dictionary<string, object>();
        d_payload["cookies"] = Cookie;
        d_payload["payload"] = payload;
await setconst.func.GetHttpsCallable("sign").CallAsync(d_payload).ContinueWith(task =>
        {
            if (task.IsCompletedSuccessfully)
            {
                string jsonString = (string)task.Result.Data;
                Dictionary<string, string> jsonData = JsonUtility.FromJson<Dictionary<string, string>>(jsonString);

                j_signedpayload = jsonData["payload"];

                Debug.Log("payload: " + j_signedpayload);
            }
        else
            {
                result = "Auth Error";
            }
    });

型