Bug #21797
Updated by Alexis Mousset about 2 years ago
*X-Chrome-Exponential-Throttling*
It has been removed in 2015 https://bugs.chromium.org/p/chromium/issues/detail?id=352259.
*X-UA-Compatible* and *ssl-unclean-shutdown*
There were there for old IE compatiblity which we don't support anymore.
*X-XSS-Protection*
https://crashtest-security.com/x-xss-protection-retired/