Fix start value in youtube embed by removing "s" from url param (#6113)

__tests__/lib/string.test.ts

@@ -335,8 +335,10 @@ describe('shortenLinks', () => {
 describe('parseEmbedPlayerFromUrl', () => {
   const inputs = [
     'https://youtu.be/videoId',
+    'https://youtu.be/videoId?t=1s',
     'https://www.youtube.com/watch?v=videoId',
     'https://www.youtube.com/watch?v=videoId&feature=share',
+    'https://www.youtube.com/watch?v=videoId&t=1s',
     'https://youtube.com/watch?v=videoId',
     'https://youtube.com/watch?v=videoId&feature=share',
     'https://youtube.com/shorts/videoId',
@@ -441,6 +443,11 @@ describe('parseEmbedPlayerFromUrl', () => {
       source: 'youtube',
       playerUri: 'https://bsky.app/iframe/youtube.html?videoId=videoId&start=0',
     },
+    {
+      type: 'youtube_video',
+      source: 'youtube',
+      playerUri: 'https://bsky.app/iframe/youtube.html?videoId=videoId&start=1',
+    },
     {
       type: 'youtube_video',
       source: 'youtube',
@@ -451,6 +458,11 @@ describe('parseEmbedPlayerFromUrl', () => {
       source: 'youtube',
       playerUri: 'https://bsky.app/iframe/youtube.html?videoId=videoId&start=0',
     },
+    {
+      type: 'youtube_video',
+      source: 'youtube',
+      playerUri: 'https://bsky.app/iframe/youtube.html?videoId=videoId&start=1',
+    },
     {
       type: 'youtube_video',
       source: 'youtube',

src/lib/strings/embed-player.ts

@@ -88,7 +88,9 @@ export function parseEmbedPlayerFromUrl(
   // youtube
   if (urlp.hostname === 'youtu.be') {
     const videoId = urlp.pathname.split('/')[1]
-    const seek = encodeURIComponent(urlp.searchParams.get('t') ?? 0)
+    const t = urlp.searchParams.get('t') ?? '0'
+    const seek = encodeURIComponent(t.replace(/s$/, ''))
+
     if (videoId) {
       return {
         type: 'youtube_video',
@@ -111,7 +113,8 @@ export function parseEmbedPlayerFromUrl(
       isShorts || isLive
         ? shortOrLiveVideoId
         : (urlp.searchParams.get('v') as string)
-    const seek = encodeURIComponent(urlp.searchParams.get('t') ?? 0)
+    const t = urlp.searchParams.get('t') ?? '0'
+    const seek = encodeURIComponent(t.replace(/s$/, ''))
 
     if (videoId) {
       return {