I'm running Squid 3.3.8 on Ubuntu 14.04.1 as a regular proxy without any SSL intercept tricks. When I visit a HTTPS site on a client using the Internet Explorer, all CONNECT requests are logged just fine. When I visit the same sites using Chrome, Squid logs only a few requests of embedded resources on separate domains (such as fbstatic-a.akamaihd.net) immediately, but not the domain I entered in the address bar of the browser (in this case facebook.com). Edit: These are logged a few minutes later, I tried it with http://www.google.com, https://www.facebook.com and a few online banking sites.
Edit: What's the reason for this behavior? Is there any way to control it?