Htaccess configuration for Https and www redirection for CDN delivered website?

Question

I have recently configured my laravel website to work on CDN, every thing works fine as expected except the existing rules for https and www redirection. My existing rules are creating too many redirect issue.

AWS: Source origin website -example(.com) (https) CNAME Alias - www.example(.com) (https)

Could you please suggest what can I do with my basic htaccess rule as below. I need below rules or else it will break my laravel website functionality. please suggest a rule to add https and www redirection which should work with below lines.

```
 
  Options -Indexes 
 
  RewriteEngine On

RewriteCond $1 !^(index\.php|resources|robots\.txt) 
  RewriteCond %{REQUEST_FILENAME} !-f 
  RewriteCond %{REQUEST_FILENAME} !-d 
  RewriteRule ^(.+)$ index.php?/$1 [L,QSA]

```

I tried below two lines and it is throwing the error -- too many redirects.

```
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]
```

Answer

When you have a CDN in front of a web-server, you need to examine the content of the X-Forwarded-Proto header that the CDN adds:

You should probably change the line:

```
RewriteCond %{HTTPS} off
```

to something like:

```
RewriteCond %{HTTP:X-Forwarded-Proto} !https
```

If you also want to have the redirect for traffic that comes in directly and not via the CDN add a second Rewrite Condition as follows:

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

Htaccess configuration for Https and www redirection for CDN delivered website?

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