Using AdvAgg with HTTPRL and SecurePages causing insecure content warnings

Hello!
First of all thanks for doing good job! And also sorry for my English.

I use SecurePages. Some parts of site are https only, default is http, and logged in users are only on https.

I installed HTTPRL and checked "Handle drupal_http_request", and it broked it, so I unchecked it back.

Then I tried to use it with AdvAgg. All was fine. But if you flush advagg cache, and then go to https version of page - you will see insecure content warning and that content in at least in chrome will not load at all.
But. If I log in, then https will be turned on for ALL pages, and it will load all advagg content. After if you logout and go to https version of page, all will be fine again and will work. After flushing cache I need again to log in to fix it.

I think it caches https version in different way? It happens only with httprl turned on in advagg config.

This is my first bug report :)

Need I to use httprl? It will speed up only first time, yeah?

And by the way, two questions:
1. I have Bundler On, Preprocess all css, and CSS files count is set to 4. Also I use CSS injector. But all pages have about 7 advagg css files. Why?
2. If I use CDN module, need I turn on AdvAgg JS & CSS CDN modules? Or it is only for Google CDN?