Help with Custom Button

We are using JS to create a Custom Button on the Service Request detail page.  Prior to a patch release 025.008.001, when the Custom Button was clicked, the Script would trigger to switch the Service Request from the detail page to the edit page and the script clicks a link contained on a Web Link field.  After the recent patch release, when the Custom Button is clicked, the Script is triggered and correctly switches the Service Request to the edit page but the script does not click the link on the Web Link field. Below is the script.  Any ideas