Error when opening a Portal Page ( e.g. Service Portal, CAB Workbench, etc.): "There is a Javascript error in your browser console" - Support and Troubleshooting

Error when opening a Portal Page ( e.g. Service Portal, CAB Workbench, etc.): "There is a Javascript error in your browser console" Description  When opening a Portal Page, or the CAB Workbench, users get the error: "There is a Javascript error in your browser console" at the top of the page.

If the browser console is inspected the following error can be observed as well:

Unhandled exception in GlideAjax.

Release or Environment All releases that use Portal Pages, e.g. Service Portal, CAB Workbench, etc.

Cause While there could be different causes for the "There is a Javascript error in your browser console" error (as this is the generic error message that is displayed) this article documents the specific cause related to the "Unhandled exception in GlideAjax." error in the browser console.

In this case, it is caused by a Client Script and/or UI Policy that uses the getXMLAnswer() or the getXML() function without a callback function.

Resolution Update any Client Scripts and/or UI Policies that call the getXMLAnswer() or the getXML() function to have callback functions.

Code example using getXMLAnswer() without a callback function:

var ga = new GlideAjax('my_script_include'); ga.addParam('sysparm_name', 'test'); ga.getXMLAnswer(); Code example using getXMLAnswer() with a callback function:

var ga = new GlideAjax('my_script_include'); ga.addParam('sysparm_name', 'test'); ga.getXMLAnswer(myCallbackFunction); function myCallbackFunction() { return; } Additional Information GlideAjax - Client