Bug ID 542586: Fallback alert mechanism can result in page refresh in Internet Explorer 8

Last Modified: Oct 16, 2023

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

Known Affected Versions:
11.6.0, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 11.6.1

Opened: Aug 31, 2015

Severity: 3-Major


If browser sent alerts fail to be received, secondary sending mechanisms may cause page to refresh in browser.


HTML page refreshes in browser


Internet explorer 8 or older. HTML page with websafe enabled. HTML page contains a form. Alert sent. Alert receives failed response.



Fix Information

Fallback alert mechanism no longer results in page refresh in older browsers.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips