Bug ID 425746: CSS styles added via style.appendChild(document.createTextNode(style)) are not correctly patched.

Last Modified: Nov 22, 2021

Bug Tracker

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

Known Affected Versions:
11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1

Fixed In:

Opened: Jul 20, 2013
Severity: 3-Major
Related Article:


Some images could be missing in the page requested through Portal Access. HTTP Request log will show that these images are requested with unmangled URLs.


Direct or failed requests to image files.


CSS styles dynamically inserted in client-side JavaScript code with construction like <style>.appendChild(document.createTextNode(css))


iRule which replaces .createTextNode(x) with .createTextNode(F5_WrapStyleAttr(x)).

Fix Information

Fixed the situation when application could make direct request to resources defined in dynamically created CSS style.

Behavior Change