Multisite, second language Live Preview not working I have an English site - https://dev.mysite.com and a Japanese site - https://dev.mysite.com/jp. 

Live preview works great for the English site, but the Japanese site has the following error:

Mixed Content: The page at 'https://dev.mysite.com/admin/entries/home/3-home?site=japanese&amp;draftId=90' was loaded over HTTPS, but requested an insecure resource 'http://dev.mysite.com/jp?x-craft-live-preview=dbSSGfPfBY&amp;token=LTNsMdKk-I8XWFyoh7ozK2akf4Hy_oOO'. This request has been blocked; the content must be served over HTTPS.


I have the Base URL set within the Sites admin panel to https, as well as the siteUrl within general.php. 

What am I missing?

Thank you!
Kelly
Issue within the .htaccess file!

These lines were causing the redirect to https to malfunction:

# Remove trailing slashes
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} (.+)/$
RewriteRule ^ %1 [R=301,L]