Исправляем

app/Http/Controllers/DownloadController.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+
+class DownloadController extends Controller
+{
+    public function download($file_name) {
+        $file_path = public_path('/'.$file_name);
+        return response()->download($file_path);
+    }
+}

app/Http/Controllers/YoutubeDownloadController.php

@@ -15,8 +15,9 @@ class YoutubeDownloadController extends Controller
 
         $collection = $yt->download(
             Options::create()
-                ->downloadPath('/path/to/downloads')
+                ->downloadPath(env('PATH_TO_DOWNLOAD'))
                 ->url($url)
+                ->remuxVideo('mp4')
         );
         $videotitle = '';
         foreach ($collection->getVideos() as $video) {
@@ -26,10 +27,11 @@ class YoutubeDownloadController extends Controller
                 $response->error = $error;
                 return response(json_encode($response));
             } else {
-                $videotitle = $video->getTitle(); // Will return Phonebloks
+                $videotitle = $video->getFile()->getFilename(); // Will return Phonebloks
                 // $video->getFile(); // \SplFileInfo instance of downloaded file
-                $file_path = public_path('/downloads/'.$videotitle);
-                return response()->download($file_path);
+                //$file_path = public_path('/downloads/'.$videotitle);
+                return redirect('/download/'.$videotitle);
+                //return response()->download($file_path);
             }
         }
         $response = new \stdClass();

resources/views/Main.vue

@@ -24,7 +24,7 @@ export default {
     methods: {
         startDownload(){
             console.log(this.url);
-            axios.get(`/download?videourl=${this.url}`).then((responce)=>{
+            axios.get(`/download_api?videourl=${this.url}`).then((responce)=>{
                 console.log(responce);
             })
         }

routes/web.php

@@ -17,4 +17,5 @@ Route::get('/', function () {
     return view('welcome');
 });
 
-Route::get('/download', 'App\Http\Controllers\YoutubeDownloadController@index');
+Route::get('/download_api', 'App\Http\Controllers\YoutubeDownloadController@index');
+Route::get('/download/{file}', 'App\Http\Controllers\DownloadController@index');