A PHP Error was encountered

Severity: Warning

Message: Undefined array key "HTTP_REFERER"

Filename: controllers/Home.php

Line Number: 65

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /var/www/jnbk/jsfilter/CodeIgniter_3.1.13/system/core/Exceptions.php:272)

Filename: helpers/url_helper.php

Line Number: 565