Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP FPS
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, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4, 13.0.0, 13.0.0 hf1, 13.0.0 hf2, 13.0.0 hf3, 13.0.1
Fixed In:
12.1.0
Opened: Nov 04, 2015 Severity: 3-Major
Slow javascript causes page to render with a slight delay.
Mainly on older browsers, a slight rendering delay (~1 second) may be noticed.
Client on Explorer 8 on a slow machine or VM.
Run the following commands on the BIG-IP system: echo "-x" > /shared/datasync/compiler_conf/cs_fpm/OBF_FLAGS chattr +i /shared/datasync/compiler_conf/cs_fpm/OBF_FLAGS
Improved performance of obfuscated javascript.