Forbid method switching (#1690)

Author: ajgarlag

symfony/apache-pack/1.0/public/.htaccess

@@ -50,7 +50,7 @@ DirectoryIndex index.php
     # - use Apache >= 2.3.9 and replace all L flags by END flags and remove the
     #   following RewriteCond (best solution)
     RewriteCond %{ENV:REDIRECT_STATUS} =""
-    RewriteRule ^index\.php(?:/(.*)|$) %{ENV:BASE}/$1 [R=301,L]
+    RewriteRule ^index\.php(?:/(.*)|$) %{ENV:BASE}/$1 [R=308,L]
 
     # If the requested filename exists, simply serve it.
     # We only want to let Apache serve files and not directories.