Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2
Fixed In:
12.1.0, 12.0.0 HF3
Opened: Nov 11, 2015 Severity: 3-Major Related Article:
K53912726
When the cookie expiration time is set to 0 (zero) using a server-side iRule, with the 'HTTP::cookie expires 0 [ relative | absolute ]' iRule API, the invocation fails, yielding the following error log in /var/log/ltm: TCL error: /Common/test-irule <HTTP_RESPONSE> - Illegal argument. Internal error - NULL argument (line 1) invoked from within 'HTTP::cookie expires <cookie-name> '0' absolute'.
On the client-side, the corresponding cookie entry has no expiration attribute.
Using server-side iRule (e.g., HTTP_RESPONSE) with 'HTTP::cookie expires 0'.
To configure 0 cookie expiration value, calculate the corresponding time-stamp and then use the following API to set the cookie expiration: HTTP::cookie attribute <name> value "expires" <time-stamp>. For example, to set cookie expiration to 0, specify the current time-stamp (for relative) or the absolute time-stamp corresponding to 0, which is 'Thu, 01-Jan-1970 00:00:00 GMT'.
The system now supports cookie parsing to set cookie 'expires' attribute to 0 (for example, through the 'HTTP::cookie expires' iRule API).