Bug ID 518663: Client waits seconds before page finishes load

Last Modified: Oct 01, 2018

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6

Opened: Apr 17, 2015
Severity: 3-Major

Symptoms

If page-load-time is enabled in the AVR profile, and the response is small enough to not be chunked, AVR will "promise" to the client a CSPM injection in the response by adding to the Content-length header. If the response contains no <html> tag, AVR will "change its mind" and won't inject the JavaScript, causing the client to wait for the missing bytes until timeout.

Impact

Client waits many seconds until timeout.

Conditions

Page-load-time is enabled in the AVR profile,

Workaround

None

Fix Information

If page-load-time is enabled in the AVR profile, and the response is small enough to not be chunked, AVR will "promise" to the client a CSPM injection in the response by adding to the Content-length header. If no <html> tag is found in the response, the system now injects empty spaces to fill in the missing bytes in order to prevent the client from timing out.

Behavior Change