.acl files not deleted, become unfindable

If I delete a file /foo/bar.txt that is controlled by /foo/bar.txt.acl, the .acl file does not get deleted. It becomes invisible because without being able to query /foo/bar.txt's link header, there's no way to know where its .acl should be and .acl files are not discover-able with a GET on a container. This now-unfindable file then prevents us from deleting it's container /foo/ since the container is non-empty and returns 409 on attempt to delete it even though it "looks" empty.

追蹤具有對應 .acl 檔案之檔案的 JavaScript 資源刪除路徑，然後檢查如何判定容器是否為空。重現刪除 /foo/bar.txt，並確認其 /foo/bar.txt.acl 已被刪除或以其他方式處理，且之後可以刪除 /foo。