There&#x27;s max-age support, the ability to preload pins in the browser, and certificate transparency to work around this, see section 4.5: <a href="https:&#x2F;&#x2F;tools.ietf.org&#x2F;html&#x2F;rfc7469#page-21" rel="nofollow">https:&#x2F;&#x2F;tools.ietf.org&#x2F;html&#x2F;rfc7469#page-21</a><p>As to this original point, it would be best if this didn&#x27;t apply to the address bar URL &#x2F; main document request. But it&#x27;s a good point, worth considering. Perhaps the UA should set a timer, and two or three refreshes in a row would be the equivalent to the prior refresh behaviour.