Warning: The server did not provide any stacktrace information

During execution via IE, you might encounter the following error:

Error opening Salesforce UI Connection. Connection Name: HC_Portal_User, cause: JavascriptException: JavaScript error WARNING: The server did not provide any stacktrace information.

Step 1: Click the gear icon/Tools menu to the right of the Internet Explorer address bar.

Step 2: Select Internet Options from the drop-down menu.

Step 3: Select the Security tab at the top of the dialog box.

Step 4: Select the Earth (Internet) icon.

Step 5: Select the Custom Level button under the Security level for this zone section.

Step 6: Locate the Scripting section within the list.

Step 7: Under Active Scripting, select Enable, then hit OK.

Step 8: Answer Yes to the following confirmation box.

Step 9: Click OK to close the Internet Options window.

Step 10: Then retry the execution of test cases on IE to check that the error is resolved.