Bug ID 678376: Portal Access: handling of cssText property of CSSStyleSheet object has been corrected

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,

Fixed In:

Opened: Aug 14, 2017

Severity: 3-Major


The cssText property of the CSSStyleSheet object is supported only by Internet Explorer 9 (IE9) or later. In other browsers this property is undefined. Testing of this property rises an error in Google Chrome and Mozilla Firefox via Portal Access.


Web application may not work correctly.


This occurs when parsing JavaScript code similar to the following: var style = document.styleSheets[0]; if (style.cssText) { ... }



Fix Information

Now the cssText property is handled correctly in all browsers via Portal Access.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips