A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: home/_site_header.php

Line Number: 128

Backtrace:

File: /home/danrocom/public_html/application/views/home/_site_header.php
Line: 128
Function: _error_handler

File: /home/danrocom/public_html/application/views/home/productListing.php
Line: 8
Function: view

File: /home/danrocom/public_html/application/controllers/Index.php
Line: 773
Function: view

File: /home/danrocom/public_html/index.php
Line: 294
Function: require_once