Today, I am happy to learn that Google has rolled out the HTTPS support to Blogspot based their blog post released on September 30, 2015.
This is fantastic!
Let us push HTTPS Everywhere!
As indicated in the Google's blog post,
Blogspot authors should be aware that if they choose to encrypt at this time, some of the current functionality of their blog may not work over HTTPS. This can be a result of template, gadgets, and blog post content, and is often caused by mixed content errors, some of which may be fixable by the author themselves."
If you blog site rely on your own web services that are availed via the HTTP protocol, you may have to make it available via the HTTPS protocol. You actually can obtain free SSL certificates for your web services, at least from two providers at the time this post is written.
Well, having stated the above, although I enabled HTTPS on this blog site, I have not be able to tested all the posts and functionality. Readers, if you happen to spot a "mixed content" error on this blog site, please let me know. I am most appreciative for that.