check undefined, trackpad can send deltaYs of 0 (#208920)

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Aaron Munger 2024-03-27 09:33:27 -07:00 committed by GitHub
parent 9757f7c73a
commit 8cfe998a17
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@ -561,7 +561,7 @@ async function webviewPreloads(ctx: PreloadContext) {
let lastTimeScrolled: number | undefined;
function flagRecentlyScrolled(node: Element, deltaY?: number) {
scrolledElement = node;
if (!deltaY) {
if (deltaY === undefined) {
lastTimeScrolled = Date.now();
previousDelta = undefined;
node.setAttribute('recentlyScrolled', 'true');