Bug ID 1302689: ASM requests to rechunk payload

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:
15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,, 16.1.0, 16.1.1, 16.1.2,,, 16.1.3,,,,,, 16.1.4,,,, 17.1.0,,,

Fixed In:
17.1.1, 15.1.10

Opened: May 28, 2023

Severity: 3-Major


ASM requests TMM to rechunk payload in following scenarios: - Content-Length header was not found on response headers. - Response with headers only.


Transfer-Encoding: chunked header is added to the response.


Content-Length header is missing from the HTTP response.



Fix Information

On "Fixed" versions, create an internal ASM parameter as "is_disable_rechunk" below and restart ASM service, which would then stop tagging "Transfer Encoding: Chunked" in the Response header.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips