Bug ID 781865: Issues in IE8 when using bot defense browser JavaScript verification and SPA

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
15.0.0, 15.0.1,,,,

Fixed In:

Opened: May 14, 2019
Severity: 3-Major


When using JavaScript verification with a Single Page Application (SPA) on Microsoft Internet Explorer version 8 (IE8) on Windows 7, there is an error message in the browser console which can cause whitepage or crash.


Browser gets whitepage or crashes.


-- Bot defense profile is attached. -- Browser Verification is 'Verify Before Access' or 'Verify After Access' (Blocking and Detection Only). -- Single Page Application is enabled -- Navigating to an HTML page using IE8 over Windows 7 OS, and sending ajax requests.



Fix Information

IE8 is no longer supported in Single Page Application mode. whitepage and crashes are fixed, but the SPA mechanism will not work.

Behavior Change