diff --git a/framework/core/.gitattributes b/framework/core/.gitattributes
new file mode 100644
index 000000000..71b028f4d
--- /dev/null
+++ b/framework/core/.gitattributes
@@ -0,0 +1,20 @@
+**/.gitattributes export-ignore
+**/.gitignore export-ignore
+**/.gitmodules export-ignore
+**/.github export-ignore
+**/.travis export-ignore
+**/.travis.yml export-ignore
+**/.editorconfig export-ignore
+**/.styleci.yml export-ignore
+
+**/phpunit.xml export-ignore
+**/tests export-ignore
+
+**/js/dist/**/* -diff
+**/js/dist/**/* linguist-generated
+**/js/dist-typings/**/* -diff
+**/js/dist-typings/**/* linguist-generated
+**/js/yarn.lock -diff
+**/js/package-lock.json -diff
+
+* text=auto eol=lf
diff --git a/framework/core/tests/fixtures/assets/avatar.gif b/framework/core/tests/fixtures/assets/avatar.gif
new file mode 100644
index 000000000..e4c576780
Binary files /dev/null and b/framework/core/tests/fixtures/assets/avatar.gif differ
diff --git a/framework/core/tests/fixtures/assets/avatar.jpg b/framework/core/tests/fixtures/assets/avatar.jpg
new file mode 100644
index 000000000..29384c0e1
Binary files /dev/null and b/framework/core/tests/fixtures/assets/avatar.jpg differ
diff --git a/framework/core/tests/fixtures/assets/avatar.png b/framework/core/tests/fixtures/assets/avatar.png
new file mode 100644
index 000000000..371011bff
Binary files /dev/null and b/framework/core/tests/fixtures/assets/avatar.png differ
diff --git a/framework/core/tests/integration/api/users/CreateTest.php b/framework/core/tests/integration/api/users/CreateTest.php
index 85c358ab8..8c0429291 100644
--- a/framework/core/tests/integration/api/users/CreateTest.php
+++ b/framework/core/tests/integration/api/users/CreateTest.php
@@ -325,28 +325,28 @@ class CreateTest extends TestCase
             'username' => 'test1',
             'email' => 'test1@machine.local',
             'is_email_confirmed' => 1,
-            'avatar_url' =>  'https://via.placeholder.com/150.png'
+            'avatar_url' =>  'https://raw.githubusercontent.com/flarum/framework/main/framework/core/tests/fixtures/assets/avatar.png'
         ], []);
 
         $regTokens[] = RegistrationToken::generate('flarum', '2', [
             'username' => 'test2',
             'email' => 'test2@machine.local',
             'is_email_confirmed' => 1,
-            'avatar_url' =>  'https://via.placeholder.com/150.jpg'
+            'avatar_url' =>  'https://raw.githubusercontent.com/flarum/framework/main/framework/core/tests/fixtures/assets/avatar.jpg'
         ], []);
 
         $regTokens[] = RegistrationToken::generate('flarum', '3', [
             'username' => 'test3',
             'email' => 'test3@machine.local',
             'is_email_confirmed' => 1,
-            'avatar_url' =>  'https://via.placeholder.com/150.gif'
+            'avatar_url' =>  'https://raw.githubusercontent.com/flarum/framework/main/framework/core/tests/fixtures/assets/avatar.gif'
         ], []);
 
         $regTokens[] = RegistrationToken::generate('flarum', '4', [
             'username' => 'test4',
             'email' => 'test4@machine.local',
             'is_email_confirmed' => 1,
-            'avatar_url' =>  'http://via.placeholder.com/150.png'
+            'avatar_url' =>  'http://raw.githubusercontent.com/flarum/framework/main/framework/core/tests/fixtures/assets/avatar.png'
         ], []);
 
         /**