Bug ID 611968: JavaScript Active content at an HTML page browsed by IE8 with significant amount of links (>1000) can run very slow

Last Modified: Aug 19, 2026

Affected Product(s):
BIG-IP APM(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, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4, 12.1.0, 12.1.0 hf1, 12.1.0 hf2, 12.1.1, 12.1.1 hf1, 12.1.1 hf2, 12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Fixed In:
13.0.0, 11.6.2

Opened: Aug 20, 2016

Severity: 4-Minor

Symptoms

JavaScript Active content at an HTML page browsed by IE8 with significant amount of links (>1000) can run very slow.

Impact

Web application performance slowdown.

Conditions

- IE8 only. - Significant number of links: >1000. - JavaScript event handlers presence.

Workaround

None

Fix Information

Fixed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips