Would you please clarify why you wish to delete it?
When I run local server it returns success,
but Amazon S3 server returns 404.
After much consideration, I guess URL string was not the bottom cause. So, I don't need to delete.
I found error in console of Chrome.
hammerhead.js:2 Error during service worker registration: DOMException: Only secure origins are allowed (see: https://goo.gl/Y0ZkNV).
URL-rewriting proxy module(?).
This is how Safari works.