add PreventBackHistory middleware and apply to admin routes

app/Http/Middleware/PreventBackHistory.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class PreventBackHistory
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     */
+    public function handle($request, Closure $next)
+    {
+        $response = $next($request);
+
+        return $response->header('Cache-Control', 'no-cache, no-store, max-age=0, must-revalidate')
+            ->header('Pragma', 'no-cache')
+            ->header('Expires', 'Fri, 01 Jan 1990 00:00:00 GMT');
+    }
+}

routes/web.php

@@ -50,7 +50,7 @@
 |--------------------------------------------------------------------------
 |
 */
-Route::prefix('admin')->name('admin.')->middleware(['auth'])->group(function () {
+Route::prefix('admin')->name('admin.')->middleware(['auth', 'prevent-back'])->group(function () {
 
     Route::redirect('/', '/admin/beranda');