Remove document on the server after getting displayed in the browser

Hi,

I am very new to Java and I am working on a legacy system.
In this system there's a GUI to generate a report. The report which is plain text file is getting generated on a remote server, a url is generated and this report is shown on the browser using
interface appletContext showDocument(URL url, String target) method call.
I would like to remove the file on the server once its displayed using a browser.
Is there anyway to determine if the report was successfully displayed by the browser, assuming browser acknowledges the request to show the web page indicated by url argument?

I didn't find the right solution from the internet.

References:
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