TYPO3 Core

This bug may need certain server environment (gzip, keep-alive, proxy) and browser (Android browser, Opera desktop) to reproduce.
When using the redirect finisher of the new form engine, HTTP page breaks and shows gzip compressed data as garbage on the browser.
I suspect this to be a result of HTTP headers somehow broken after the redirect. When looking at the HTTP response I noticed there is a Location header and Content-Lenght is NOT zero as expected.

Setting $this->response->setHeader('Content-Length', '0'); in the redirectToUri function in RedirectFinisher.php fixed the problem.