we use the Newsletter plugin together with WordPress 4.5 and the wordpress-https plugin. The wordpress-https plugin allows us to secure specific pages with HTTPS. We have secured our newsletter subscription page too (e.g. https://example.com/newsletter-subscription/). The newsletter plugin subscription form has the front page as POST method target (e.g. http://example.com/?na=s). Because our front page isn’t secured, a HTTP link is used for the newsletter plugin subscription form. And because of this, the data will be send unsecured and Google Chrome doesn’t list the subscription page as secure.
Does anyone have a solution for this? My idea: is it possible, that the newsletter subscription form use the current page link instead of the front page? That would be great.