AWS console notification dismisserator 9000 - dismiss AWS flash notifications after (about) 5 seconds

aws-notification-timer.user.js

// ==UserScript==
// @name         AWS console notification dismisserator 9000
// @namespace    https://github.com/jamesinc
// @version      1.0
// @description  Dismiss AWS flash notifications after about 5 seconds
// @author       James Ducker
// @match        https://*.console.aws.amazon.com/*
// @grant        none
// @run-at       document-end
// ==/UserScript==

(() => {

    let container = document.querySelectorAll("div[awsui-app-layout-region='notifications']")[0];
    
    let dismissNotifications = ( ) => {
        // Find alerts
        let notifications = container.querySelectorAll("awsui-flash");

        for ( let flash of notifications ) {
            // Make sure we only run this badboy once for each notification
            if ( ! flash.hasAttribute("dismissed") ) {

                // Mark this notification as dismissed
                flash.setAttribute("dismissed", "...duh (spooky minimalist synth melody)");

                // Do a bit of scope magic
                setTimeout(((item) => {
                    return () => {
                        // Trigger click event on button node
                        let closeButton = item.querySelectorAll("button.awsui-button")[0];
                        // Create an event
                        // For more help with creating events, see facebook.com/events
                        let clickyBoi = new Event('click');

                        // P U S H   T H E   B U T T O N
                        closeButton.dispatchEvent(clickyBoi);
                    }
                })(flash), 5000);
            }
        }
    }

    // Scan for new notifications once per second
    setInterval(dismissNotifications, 1000);

})();

Hello, I have patched this with v1.1 that fixes a console error message, see https://gist.github.com/jamesinc/7623301b9acc94b54dd73f4f5ddacb55#file-aws-notification-timer-user-js