Battle-log: Support seeking to a timestamp in <youtube> tags

play.pokemonshowdown.com/src/battle-log.ts

@@ -929,13 +929,15 @@ export class BattleLog {
 				this.players.push(null);
 				const idx = this.players.length;
 				this.initYoutubePlayer(idx);
+				console.log(src, time);
 				return {
 					tagName: 'iframe',
 					attribs: [
 						'id', `youtube-iframe-${idx}`,
 						'width', width, 'height', height,
 						'src', `https://www.youtube.com/embed/${videoId}?enablejsapi=1&playsinline=1${time ? `&start=${time}` : ''}`,
 						'frameborder', '0', 'allow', 'accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture', 'allowfullscreen', 'allowfullscreen',
+						'time', (time || 0) + "",
 					],
 				};
 			} else if (tagName === 'formatselect') {
@@ -1069,7 +1071,8 @@ export class BattleLog {
 	static initYoutubePlayer(idx: number) {
 		const id = `youtube-iframe-${idx}`;
 		const loadPlayer = () => {
-			if (!$(`#${id}`).length) return;
+			const el = $(`#${id}`);
+			if (!el.length) return;
 			const player = new window.YT.Player(id, {
 				events: {
 					onStateChange: (event: any) => {
@@ -1082,7 +1085,12 @@ export class BattleLog {
 					},
 				},
 			});
+			const time = Number(el.attr('time'));
+			if (time) {
+				player.seekTo(time);
+			}
 			this.players[idx - 1] = player;
+
 		};
 		// wait for html element to be in DOM
 		this.ensureYoutube().then(() => {