TYPO3 Fluid form creates too long URL with referrer arguments

I have a Fluid form which is submitted by JavaScript. Unfortunately it adds a very long parameter for __referrer[arguments] field. Here is the example part of the URL:

tx_extension_plugin%5B__referrer%5D%5Barguments%5D=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%2BIEVpbmUgd2ljaHRpZ2UgR3J1bmRsYWdlIGbDvHIgZGllc2Ugd2lzc2Vuc2NoYWZ0bGljaGVuIEFyYmVpdGVuIGlzdCBkaWUgQmVyZWl0c3RlbGx1bmcgZW50c3ByZWNoZW5kZXIgUXVlbGxlbiBpbSBPcGVuIEFjY2VzcywgZGllIGF1cyB2ZXJzY2hpZWRlbmVuIEVpbnJpY2h0dW5nZW4gdW5kIHZvbiBQcml2YXRwZXJzb25lbiBzdGFtbWVuLiBEaWUgZGlnaXRhbGUgS29sbGVrdGlvbiB3aXJkIGxhdWZlbmQgZXJ3ZWl0ZXJ0LiBXZXIgbm9jaCDDvGJlciBlbnRzcHJlY2hlbmRlcywgdW5zIGZlaGxlbmRlcyBNYXRlcmlhbCB2ZXJmw7xndCwgd2lyZCB1bSBLb250YWt0IG1pdCA8YSBocmVmPSJtYWlsdG86bWFydGluLm11bmtlQHNsdWItZHJlc2Rlbi5kZSI%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%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%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%3D5d594ee637f33ac3bac6694410440e6559512205

This causes the error:

# Request-URI Too Long
The requested URL's length exceeds the capacity limit for this server.
Additionally, a 400 Bad Request error was encountered while trying to use an ErrorDocument to handle the request.

Is there a way to enforce maximal length of this parameter?

That's a server limit. Not sure if that can be increased on the webserver side, as you did not mentioned the server you have to look that up onyour self.

However, using form you should use HTTP Method POST instead of GET, which should transfer that data as POST data and not as url query argument and the limit should not be hit.

You cannot shorten that information as that is required.