Laravel Flash message 为什么只显示1秒？因为多种转跳吗？middleware原因？

    public function update(Request $request, $id) {
        $data = User::find($id);
        $data->name = $request->name;
        $data->email = $request->email;
        if (!empty($request->password)) {
            if ($request->password === $request->password_confirmation) {
                $data->password = Hash::make($request->password);
            } else {
                //password != password_confirmation
                return redirect()->route("$this->route_name.edit", $id)->with('danger', 'The two passwords are not match.');
                //return  redirect()->back();
            }
        }
        $data->update();
        return redirect()->route("$this->route_name.index")->with('success', 'Updated successfully.');

    }Copy

session()->now('danger', 'The two passwords are not match.');
return redirect()->back();Copy

Route::resource('user', UserController::class)->middleware('auth');Copy

return redirect()->route("$this->route_name.index")->with('success', 'Updated successfully.');
// 由返回列表改为返回edit页面
return redirect()->route("$this->route_name.edit", $id)->with('success', 'Updated successfully.');Copy

Route::get('user/{id}/edit', 'UserController@edit')->name('user.edit');Copy