Impossible to use AJAX on PHP 5.6

Hm. Switch temporarily CodeIgniter to 'production' mode to test whether this message disappears. Then turn back to 'development' to see this message again. Looks like there is a wrong PHP configuration setting, always_populate_raw_post_data - check what is its value. See how the following information might help:

https://github.com/bcit-ci/CodeIgniter/issues/3254
https://github.com/piwik/piwik/issues/6465

Thanks! I checked them and I know the problem is on the PHP configuration. Problem here is again that I can't modify it, the admin is very "conservative" and doesn't want to modify the global setup of environment since other applications are working fine.

As explained here
http://stackoverflow.com/questions/28278...m-backbone
"Some claim it happens when calling 

Code:

header()

 after some text has already been outputted."
And actually when i create my controller, extends from CI_Controller, there are new headers set automatically.

I wish then try to find a solution to avoid this header to be sent..