Correctly add photos to S3

config/laravel-medialibrary.php

@@ -29,7 +29,12 @@ return [
      * When urls to files get generated this class will be called. Leave empty
      * if your files are stored locally above the site root or on s3.
      */
-    'custom_url_generator_class' => '',
+    'custom_url_generator_class' => null,
+
+    /*
+     * The class that contains the strategy for determining a media file's path.
+     */
+    'custom_path_generator_class' => null,
 
     's3' => [
         /*
@@ -37,4 +42,18 @@ return [
          */
         'domain' => env('AWS_S3_URL'),
     ],
+
+    'remote' => [
+        /**
+         * Any extra headers that should be included when uploading media to
+         * a remote disk. Even though supported headers may vary between
+         * different drivers, a sensible default has been provided.
+         *
+         * Supported by S3: CacheControl, Expires, StorageClass,
+         * ServerSideEncryption, Metadata, ACL, ContentEncoding
+         */
+        'extra_headers' => [
+            'CacheControl' => 'max-age=604800',
+        ]
+    ],
 ];