Same problem. Make domain with ssl.
Web server Configuration: nginx->apache->php-fpm (5.5)
Nginx default vhost template: force-https-http2
All other parameters is default.
Copy my old wordpress site to public_html folder, and...
All working, but not open permalink - error "AH00126: Invalid URI in request GET \\@backend HTTP/1.0"
if I disable force-https - have error "AH00124: Request exceeded the limit of 10 internal redirects due to probable configuration error"
Why?