I don´t think this will be a problem for some time, since their FAQ says:
Does this mean my unencrypted site will stop working?
Not for a long time. Transitioning the web to HTTPS is going to take some time. The first
thing we’re going to do is require HTTPS for new features. So whatever your website does
today, it will still work for months or years.
In the long run, there is some discussion of removing or limiting features that are currently
available to unencrypted sites. Those changes will be announced well ahead of any change,
so you’ll have time to update your site either to not rely on those features or, we hope, to
move to HTTPS. And any such changes will be made only after consultation with the web
community, to make sure we’re striking an appropriate balance between functionality and