How to get DW Q&A to work over SSL?

It appears as if this plugin does not work over SSL. I tried editing "/inc/template-functions.php" and changed "echo recaptcha_get_html( $public_key);" on line 208 to "echo recaptcha_get_html( $public_key,true);", bit it made no difference, I still get an "insecure content" error message in the console. I am quite suprised that I could not find anything on google about this, so is it my problem, or is it a general problem with the plugin?   The site in question. I like this plugin, and it works well on my localhost whithout recaptcha, but recaptcha is a "must have".   Thank you.