Execute mouseout only 'once'

b0dd7933 · Tim Zallmann · ef3024ea · b0dd7933
--- a/app/assets/javascripts/lib/utils/navigation_utility.js
+++ b/app/assets/javascripts/lib/utils/navigation_utility.js
@@ -34,14 +34,13 @@ export function initPrefetchLinks(selector) {
    };

    const mouseOverHandler = () => {
-      el.addEventListener('mouseout', mouseOutHandler, { passive: true });
+      el.addEventListener('mouseout', mouseOutHandler, { once:true, passive: true });

      mouseOverTimer = setTimeout(() => {
        if (el.href) prefetchDocument(el.href);

        // Only execute once
        el.removeEventListener('mouseover', mouseOverHandler, true);
-        el.removeEventListener('mouseout', mouseOutHandler);

        mouseOverTimer = undefined;
      }, 100);