js跨域

app/Http/Middleware/CrossHttp.php

-<?php
-namespace App\Http\Middleware;
-use Closure;
-class CrossHttp
-{
-    /**
-     * Handle an incoming request.
-     *
-     * @param  \Illuminate\Http\Request $request
-     * @param  \Closure $next
-     * @return mixed
-     */
-    public function handle($request, Closure $next)
-    {
-        $response = $next($request);
-        $origin = $request->server('HTTP_ORIGIN') ? $request->server('HTTP_ORIGIN') : '';
-        $allow_origin = [
-            'http://localhost:3000',
-        ];
-//        if (in_array($origin, $allow_origin)) {
-        $response->header('Access-Control-Allow-Origin', "*");
-        $response->header('Access-Control-Allow-Headers', 'Origin, Content-Type, Cookie,X-Requested-With, X-CSRF-TOKEN, Accept, Authorization, X-XSRF-TOKEN');
-        $response->header('Access-Control-Expose-Headers', 'Authorization, authenticated');
-        $response->header('Access-Control-Allow-Methods', 'GET, POST, PATCH, PUT, OPTIONS');
-        $response->header('Access-Control-Allow-Credentials', 'true');
-//        }
-        return $response;
-    }
+<?php
+namespace App\Http\Middleware;
+use Closure;
+class CrossHttp
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request $request
+     * @param  \Closure $next
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        $response = $next($request);
+        $response->header('Access-Control-Allow-Origin', "*");
+        $response->header('Access-Control-Allow-Headers', 'Origin, Content-Type, Cookie,X-Requested-With, X-CSRF-TOKEN, Accept, Authorization, X-XSRF-TOKEN');
+        $response->header('Access-Control-Expose-Headers', 'Authorization, authenticated');
+        $response->header('Access-Control-Allow-Methods', 'GET, POST, PATCH, PUT, OPTIONS');
+        $response->header('Access-Control-Allow-Credentials', 'true');
+        return $response;
+    }
 }
\ No newline at end of file

app/Http/routes.php

@@ -28,7 +28,7 @@ Route::pattern('roleId', '[0-9]+');
 |
 */
 
-Route::group(['middleware' => 'cors'], function () {
+Route::group(['middleware' => ["cors"]], function () {
     Route::get('/api/get_user_labels', 'ApiController@getUserLabels');
 });