diff --git a/app/views/home/index.html.haml b/app/views/home/index.html.haml
index 5b6f5b85526..df4223ed2f2 100644
--- a/app/views/home/index.html.haml
+++ b/app/views/home/index.html.haml
@@ -1,6 +1,6 @@
 - content_for :header_tags do
   %script#initial-state{:type => 'application/json'}!= json_escape(render(file: 'home/initial_state', formats: :json))
 
-  = javascript_include_tag 'application', integrity: true
+  = javascript_include_tag 'application', integrity: true, crossorigin: 'anonymous'
 
 = react_component 'Mastodon', default_props, class: 'app-holder', prerender: false
diff --git a/app/views/layouts/admin.html.haml b/app/views/layouts/admin.html.haml
index fa364750f98..892bcd596d3 100644
--- a/app/views/layouts/admin.html.haml
+++ b/app/views/layouts/admin.html.haml
@@ -1,5 +1,5 @@
 - content_for :header_tags do
-  = javascript_include_tag 'application_public', integrity: true
+  = javascript_include_tag 'application_public', integrity: true, crossorigin: 'anonymous'
 
 - content_for :content do
   .admin-wrapper
diff --git a/app/views/layouts/auth.html.haml b/app/views/layouts/auth.html.haml
index bf4113baf23..89969041952 100644
--- a/app/views/layouts/auth.html.haml
+++ b/app/views/layouts/auth.html.haml
@@ -1,5 +1,5 @@
 - content_for :header_tags do
-  = javascript_include_tag 'application_public', integrity: true
+  = javascript_include_tag 'application_public', integrity: true, crossorigin: 'anonymous'
 
 - content_for :content do
   .container
diff --git a/app/views/layouts/embedded.html.haml b/app/views/layouts/embedded.html.haml
index c34247c9132..562be66259d 100644
--- a/app/views/layouts/embedded.html.haml
+++ b/app/views/layouts/embedded.html.haml
@@ -3,6 +3,6 @@
   %head
     %meta{:charset => 'utf-8'}/
     = stylesheet_link_tag 'application', media: 'all'
-    = javascript_include_tag 'application_public', integrity: true
+    = javascript_include_tag 'application_public', integrity: true, crossorigin: 'anonymous'
   %body.embed
     = yield
diff --git a/app/views/layouts/public.html.haml b/app/views/layouts/public.html.haml
index 56781a286e5..fdde0a68138 100644
--- a/app/views/layouts/public.html.haml
+++ b/app/views/layouts/public.html.haml
@@ -1,5 +1,5 @@
 - content_for :header_tags do
-  = javascript_include_tag 'application_public', integrity: true
+  = javascript_include_tag 'application_public', integrity: true, crossorigin: 'anonymous'
 
 - content_for :content do
   .container= yield