为仪表板页面创建了一个PrivateRoute，未登录时无法通过URL访问，但刷新仪表板页面会导致重定向到身份验证页面。因此，我添加了一个sessionStorage，但是现在刷新时在我的控制台上显示"throttling navigation to prevent the browser from hanging"，因为它一直在不停地重定向到页面。

//以下是代码

//App.js

import { BrowserRouter as Router, Routes, Route } from "react-router-dom";
import Dashboard from "./components/dashboard";
import Auth from "./components/auth";
import PrivateRoute from "./PrivateRoute";

function App() {
  return (
    <Router>
      <Routes>
        <Route path="/signin" element={<Auth />} />
        <Route
          path="/dashboard"
          element={<PrivateRoute> <Dashboard /></PrivateRoute>}
        />
      </Routes>
    </Router>
  );
}

export default App;

//PrivateRoute.js

import {  Navigate } from "react-router-dom";
import { auth } from "./config/firebase";

function PrivateRoute({ children }) {
  const user = auth.currentUser;

  // 检查用户是否已经通过身份验证
  if (!user) {
    // 用户未通过身份验证，重定向到登录页面
    return <Navigate to="/signin" replace/>;
  }

  // 用户已通过身份验证，渲染受保护的路由
  return children;
}

export default PrivateRoute;

//Auth.js

import { useEffect, useState } from "react";
import { useNavigate } from "react-router-dom";
import { auth, googleProvider } from "../config/firebase";
import {
  createUserWithEmailAndPassword,
  signInWithPopup,
  signOut,
} from "firebase/auth";

function Auth ()  {
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const navigate = useNavigate();

  console.log(auth?.currentUser?.email);

  useEffect(()=> {
    const userFromStorage = JSON.parse(sessionStorage.getItem("user"));
    if(userFromStorage){
      console.log(userFromStorage);
      navigate("/dashboard");
    }
  } , [navigate]);

  const signIn = async () => {
    try {
      await createUserWithEmailAndPassword(auth, email, password);
      sessionStorage.setItem("user" , JSON.stringify(auth.currentUser));
      navigate("/dashboard");
    } catch (err) {
      console.error(err);
    }
  };

  const signInWithGoogle = async () => {
    try {
      await signInWithPopup(auth, googleProvider);
      sessionStorage.setItem("user", JSON.stringify(auth.currentUser));
      navigate("./dashboard");
    } catch (err) {
      console.error(err);
    }
  };

  const Logout = async () => {
    try {
      await signOut(auth);
      sessionStorage.removeItem("user");
    } catch (err) {
      console.error(err);
    }
  };

  return (
    <div>
      <input placeholder="email" onChange={(e) => setEmail(e.target.value)} />
      <input
        type="password"
        placeholder="password"
        onChange={(e) => setPassword(e.target.value)}
      />
      <button onClick={signIn}>sign in</button>
      <button onClick={signInWithGoogle}>sign in with Google</button>
      <button onClick={Logout}>Logout</button>
    </div>
  );
};
export default Auth;

不想要这个错误，作为一个初学者，如果有改进的空间，请随时告诉我。