Does not use passive listeners to improve scrolling performance

    <!-- Eliminate "Does not use passive listeners to improve scrolling performance" messages from Lighthouse -->
    <script>
        // From https://stackoverflow.com/questions/60357083/does-not-use-passive-listeners-to-improve-scrolling-performance-lighthouse-repo
        // This seems to work.
        jQuery.event.special.touchstart = {
            setup: function( _, ns, handle ) {
                this.addEventListener("touchstart", handle, { passive: !ns.includes("noPreventDefault") });
            }
        };
        jQuery.event.special.touchmove = {
            setup: function( _, ns, handle ) {
                this.addEventListener("touchmove", handle, { passive: !ns.includes("noPreventDefault") });
            }
        };
        jQuery.event.special.wheel = {
            setup: function( _, ns, handle ){
                this.addEventListener("wheel", handle, { passive: true });
            }
        };
        jQuery.event.special.mousewheel = {
            setup: function( _, ns, handle ){
                this.addEventListener("mousewheel", handle, { passive: true });
            }
        };
    </script>