登录后切换主题触发Uncaught DOMException错误求助

出现错误 Uncaught DOMException: failed to execute add on DOMTokenList，该错误仅在Supabase认证登录后触发；清除浏览器缓存或使用无痕模式时，主题切换功能正常，推测问题与认证逻辑相关。

相关代码 #

1. navbar.jsx 主题切换逻辑与导航栏元素 #

// 明暗主题切换函数
const toggleTheme = () => {
  setTheme((prevTheme) => (prevTheme === "light" ? "dark" : "light"));
};

<div id="navbar-container" className={`flex justify-between z-10 items-center top-0 pt-3 px-4 w-full sticky ${theme === "dark" ? "bg-slate-950": "bg-white"}`}>

2. App.jsx 中 shadcn-ui ThemeProvider 配置 #

const Navigation = () => {
  const location = useLocation();
  const loginRoute = location.pathname === '/login';
  const emailConfirmRoute = location.pathname === "/success/confirm";

  // 根据路由决定渲染的导航栏组件
  const renderNavbar = loginRoute || emailConfirmRoute ? null : (location.pathname === '/' ? <Navbar /> : <DashboardNavbar />);

  return renderNavbar;
};

const FooterComponent = () => {
  const location = useLocation();
  const loginRoute = location.pathname === '/login';

  const renderFooter = loginRoute ? null : (location.pathname === '/' ? <Footer /> : null);
  
  return renderFooter;
};

// 创建用户上下文
export const UserContext = createContext(null);

// 自定义Hook以使用用户上下文
export const useUser = () => useContext(UserContext);

const App = () => {
  const [user, setUser] = useState(null);

  // 通过useEffect获取认证会话状态
  useEffect(() => {
    async function getSession() {
      try {
        const {data: { session }} = await supabase.auth.getSession()

        if (session) {
          console.log("Session object:", session);
          
        if (session.user && session.user.aud) {
          console.log("Session aud:", session.user?.aud)
        } else {
          console.log("Session is undefined")
        }
        setUser(session.user);
        
      } else {
          console.log('No active session: User is not logged in');
        }
      } catch (error) {
        console.error('Error fetching session:', error);
      }
    }
    getSession();
  }, [setUser]);

  return (
    <ThemeProvider defaultTheme='light' storageKey='vite-ui-theme'>
      <UserContext.Provider value={{ user, setUser }}>
        <Router>
          <div>
            <Navigation/>
            <Routes>
              <Route path="/" element={<Home />} />
              <Route path='/create' element={<Dashboard />} />
              <Route path='/login' element={<Login />} />
              <Route path='/success/confirm' element={<ConfirmEmail />} />
            </Routes>
            <FooterComponent />
          </div>
        </Router>
      </UserContext.Provider>
    </ThemeProvider>
  );
};

export default App;

3. themeProvider.jsx 实现 #

/* eslint-disable react/prop-types */
import { createContext, useContext, useEffect, useState } from "react";

const ThemeProviderContext = createContext(null);

export function ThemeProvider({
  children,
  defaultTheme = "system",
  storageKey = "vite-ui-theme",
  ...props
}) {
  const [theme, setTheme] = useState(
    () => localStorage.getItem(storageKey) || defaultTheme
  );

  useEffect(() => {
    const root = window.document.documentElement;

    root.classList.remove("light", "dark");

    if (theme === "system") {
      const systemTheme = window.matchMedia("(prefers-color-scheme: dark)")
        .matches
        ? "dark"
        : "light";

      root.classList.add(systemTheme);
      return;
    }

    root.classList.add(theme);
  }, [theme]);

  const value = {
    theme,
    setTheme: (theme) => {
      localStorage.setItem(storageKey, theme);
      setTheme(theme);
    },
  };

  return (
    <ThemeProviderContext.Provider {...props} value={value}>
      {children}
    </ThemeProviderContext.Provider>
  );
}

// eslint-disable-next-line react-refresh/only-export-components
export const useTheme = () => {
  const context = useContext(ThemeProviderContext);

  if (context === undefined)
    throw new Error("useTheme must be used within a ThemeProvider");

  return context;
};

内容的提问来源于stack exchange，提问作者anon