.htaccess : http to https redirection does not work

问题

I have a problem with my .htaccess and https redirection.

First of all, I have consulted these links to find a solution but none could help me.

List of links :

• .htaccess redirect http to https
• ModRewrite with HTTPS
• https://www.ndchost.com/wiki/apache/redirect-http-to-https
• htaccess redirect to https://www
• https://serverfault.com/questions/116206/how-do-i-use-htaccess-to-always-redirect-from-http-to-https

When I load the page with http, the .htaccess redirect me to https but when I load the page with https, I have an infinite loop.

Here is my .htaccess code :

RewriteEngine on

RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

RewriteCond %{HTTP_HOST} ^(api|www|dev|stefano|sav)\.
RewriteCond %{REQUEST_URI} !^/(api|www|dev|stefano|sav)/
RewriteCond %{DOCUMENT_ROOT}/%1 -d
RewriteRule ^(.*)$ %1/$1 [L]

Is anybody can help me create a redirect condition (http to https) ?

回答1:

You are leaving off the Rewrite Flags You need to tell it force the redirection with R flag and optional provide status code which is recommended 301, 302 etc.

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

By the way, every example you linked to shows the answer using the R flag, not sure why you didn't use exact examples :)

Solution if behind devices like load balancer.

RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

回答2:

I have been fighting with this same problem for hours. It seems that I needed the solution for systems behind a load balancer. Perhaps this is because I am using Cloudflare with my site.

RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

After adding the above lines to my .htaccess file, I deleted the cache on Cloudflare and the site loads as it should.

来源：https://stackoverflow.com/questions/34673170/htaccess-http-to-https-redirection-does-not-work