Hypertext Transfer Protocol (HTTP) Question:

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How to hide the http request action behind and show a message in the browser instead?
ive created a http request which close the ticket when the caller clicks on the link. but it directs to the page of the ticket with an operator view.
so the caller will see the operator interface of the ticket when he clicks on the link to close the ticket.
instead i just want to show a message to the caller saying your request has been done for exemple.
is it possible to hide the action behind?