The URI you submitted has disallowed characters. Code Igniter

While deploying your Code Igniter application in the production server, you may come across with the following error message.

The URI you submitted has disallowed characters.

The problem can be solved with one of the following:

1. mod_rewrite problem: The mod_rewrite might be the problem for this. Get help form your hosting provider to enable mod_rewrite. In my case, our hosting provider is networksolutions.com. The server environment is FastCGI. They informed us that by default the mod_rewrite will be enabled. In order to use in your application, we need to add
   RewriteBase URL-path
   in our .htaccess file.
   

   
   RewriteEngine on
   # If your application is in the home directory
   RewriteBase /
   #Followed by your application specific rules
   

   
   In case of deploying in a sub-directories the .htaccess file should have
   
   

   RewriteEngine on
   # If your application is in the sub-directory
   RewriteBase /myfolder

   
   
   


2. The $config['permitted_uri_chars'] configuration variable problem. To resolve this check this url.