There is an optional function within the UserJavaScript.js file named userJavaScriptDeleteMessage(). This method will replace the standard, inbuilt message returned by ExtraView when an issue is deleted with a string value. This method is not executed if the optional userJavaScriptDeleteBtn() function returns false. The default code for the method within the UserJavaScript.js file is:
function userJavaScriptDeleteMessage() {
return;
}
Simply code your own message into the function, and return a string. If the method is not present, no error is generated.