use relative path for `scope` (#16714)

Use relative path for `scope` in web manifest to allow users use PWA correctly via alternate domains.

diff --git a/app/serializers/manifest_serializer.rb b/app/serializers/manifest_serializer.rb
index dafe8f55b9e8e42f32e07bc92f421f44370832f6..4786aa760af92aa4b0e1f5e04ccf8cb82695d35b 100644 (file)
--- a/app/serializers/manifest_serializer.rb
+++ b/app/serializers/manifest_serializer.rb
@@ -48,7 +48,7 @@ class ManifestSerializer < ActiveModel::Serializer
   end
 
   def scope
-    root_url
+    '/'
   end
 
   def share_target