indexignore *
<IfModule mod_rewrite.c>
RewriteEngine On

RewriteCond %{HTTPS} off
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

#RewriteCond %{HTTP_HOST} !^www\. [NC]
#RewriteRule .* https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !index
RewriteRule ^(.*)$ ./index.html [QSA,L]
</IfModule>