Using this code:
RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
My site goes to HTTPS if I type in www.domain.com. HOWEVER, only Google Chrome refuses to show my EV CERT and complains about mixed content. If I visit the site in HTTPS or jump pages because everything is set to HTTPS now in the links I don't have the problem. The green bar shows just fine.
Is this a bug with Google?
It is unlikely a BUG with Google, millions of sites use SSL without any problem. Your problem is likely because you have elements on the page that are not being transferred using SSL while some are...
Using Firebug or Similar look at 'NET' tab and refresh the page and check what resources are being loaded via HTTP and what is being loaded by HTTPS.
This mostly happens when using absolute paths i.e <img src="http://www.domain.com/img.png" alt="" > while using <img src=/img.png> will work for both HTTP and HTTPS.
Remote scripts can also throw up these errors, ensure all remote JavaScripts and other resources are either using //domain.com/script.js or HTTPS://domain.com/script.js. Additionally showing us the HTML or site in question goes a long away for giving you a more solid answer.
Using a global rewrite won't fix this issue, its time to go back and edit your content this time using / without http or with https://
