IE get the error message from JS

[Harmageddon]

Hi,

I'm trying to get better at automating IE and I've came up with the issue of gathering the error messages.

When the script is executed, I receive error "Failed to Submit: No Working Days Selected" which I want to get, however, I'm not able to catch it with my script. I've tried to check _IEDocReadHTML, _IEBodyReadText but both of these came up empty of this message.

I understand that it's being generated by JS and it does fade away in few seconds.

Inspection when message is present on screen:

<div class="message warning fadable" style="opacity: 0.557469;"><
    Failed to Submit: No working Days Selected
    <a class="messageCloseButton" href="#">Close</a>
</div>

JS part:

<script type="text/javascript">
//<![CDATA[
    $("div.fadable").delay(2000)
        .fadeOut("slow", function () {
            $("div.fadable").remove();
        }); 
//<![CDATA[
</script>

Script to get to the error message:

expandcollapse popup

#include <IE.au3>

Global $g_obj_IE
Global Const $g_c_str_WebSiteURL = "https://opensource-demo.orangehrmlive.com/"

Global $g_str_DefaultUserName = "Admin"
Global $g_str_DefaultPassowrd = "admin123"
Global $g_str_EmployeeName = "Jasmine Morgan"
Global $g_str_LeaveType = "US - Vacation"

$g_obj_IE = _IECreate($g_c_str_WebSiteURL)
Global $g_str_FromDate = "2020-12-19"
Global $g_str_ToDate = "2020-12-20"

_EnterLoginDetails()
_NavigateToAssignLeaveAndFillData()

Func _EnterLoginDetails()
    Local $oUserNameWindow = _IEGetObjById($g_obj_IE, "txtUsername")
    Local $oPasswordWindows = _IEGetObjById($g_obj_IE, "txtPassword")
    Local $oLoginButton = _IEGetObjById($g_obj_IE, "btnLogin")

    _IEAction($oUserNameWindow, "focus") ;Focusing input field to remove the default text of "Username"
    _IEFormElementSetValue($oUserNameWindow, $g_str_DefaultUserName)

    _IEAction($oPasswordWindows, "focus") ;Focusing input field to remove the default text of "Password"
    _IEFormElementSetValue($oPasswordWindows, $g_str_DefaultPassowrd)

    _IEAction($oLoginButton, "click")
    _IELoadWait($g_obj_IE)
EndFunc   ;==>_EnterLoginDetails

Func _NavigateToAssignLeaveAndFillData()
    _IELinkClickByText($g_obj_IE, "Assign Leave")
    _IELoadWait($g_obj_IE)
    
    Local $_obj_EmployeeNameInput = _IEGetObjById($g_obj_IE, "assignleave_txtEmployee_empName")
    Local $_obj_leaveTypeSeceltor = _IEGetObjById($g_obj_IE, "assignleave_txtLeaveType")
    Local $_obj_FromDateSelector = _IEGetObjById($g_obj_IE, "assignleave_txtFromDate")
    Local $_obj_ToDateSelector = _IEGetObjById($g_obj_IE, "assignleave_txtToDate")
    Local $_obj_AssignButton = _IEGetObjById($g_obj_IE, "assignBtn")
    
    _IEAction($_obj_EmployeeNameInput, "Focus")     ; Focus is needed to "delete" the default grayed out text
    _IEFormElementSetValue($_obj_EmployeeNameInput, $g_str_EmployeeName)
    _IEAction($_obj_EmployeeNameInput, "click")
    _IEAction($_obj_leaveTypeSeceltor, "Focus") ;Focus is needed  to Activate the option selecot
    _IEFormElementOptionSelect($_obj_leaveTypeSeceltor, $g_str_LeaveType, 1, "byText")
    _IEFormElementSetValue($_obj_FromDateSelector, $g_str_FromDate)
    _IEFormElementSetValue($_obj_ToDateSelector, $g_str_ToDate)
    _IEAction($_obj_AssignButton, "click") ;Clicks the Assign Button in Assign leave window
    
    $strHtmlBody = _IEBodyReadText($g_obj_IE)
    ClipPut($strHtmlBody)
EndFunc ;==>_NavigateToAssignLeaveAndFillData

I would appreciate if someone could give me a hint or code snippet to put me on the right track how I should approach this issue to catch these error messages.