TYPO3 Core

I noticed the incoming Web-Request in an extbase-controller doesn't contain the url-hash like (https://foo-bar.com/my-action/?tx_foobar_pi1[action]=submit#jump-mark).

This would sometimes be useful and the f:form also has an explicit attribute to set the section which works great.

But imagine this situation:
A site needs to submit using f:form to a controller:submit action to do something with the submit-data and then we want to redirect to a result-page (to get rid of the POST-Data and possible user-caused "re-post" by refreshing browser-page).

It would be great being able to get an optional url-hash like '#jump-here' from the web-request object 'requestUri' as it should reflect our (complete) original request. But it doesn't have this property - whereas the browser-URL has it.