Bug ID 705813: Portal Access: HTML page with commented '<META charset=...>' tag may be shown incorrectly

Last Modified: Jan 20, 2023

Bug Tracker

Affected Product:  See more info
BIG-IP APM(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,, 15.0.0, 15.0.1,,,,

Opened: Feb 07, 2018
Severity: 4-Minor


If HTML page includes '<META ... charset=...>' tag inside HTML comment, this tag must not be used as character set definition. But Portal Access ignores HTML comments in this case, and rewritten page may contain incorrect characters.


Via Portal Access, HTML page may contain incorrect characters.


- HTML page contains commented wrong character set definition, for example: <!-- <meta http-equiv="Content-Type" content="text/html; charset=big5"> --> - Back-end server response with this page does not include character set definition in 'Content-type' header.


Use iRule to add 'Content-type' response header with correct character set definition for affected HTML pages.

Fix Information


Behavior Change