diff --git a/Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js b/Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js
index b6cb6ff..a71c61b 100644
--- a/Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js
+++ b/Jellyfin.Plugin.MediaBarEnhanced/Web/mediaBarEnhanced.js
@@ -1745,43 +1745,96 @@ const SlideCreator = {
 
         if (isSafariWebKit) {
           // ── Safari: plain iframe embed ───────────────────────────────────────────
-          const embedUrl = `https://www.youtube-nocookie.com/embed/${videoId}?autoplay=1&mute=1&controls=0&playsinline=1&rel=0&iv_load_policy=3&enablejsapi=0&origin=${encodeURIComponent(window.location.origin)}`;
+          // Fetch SponsorBlock data and apply as URL params (start= / end=)
+          ApiUtils.fetchSponsorBlockData(videoId).then(segments => {
+            let startParam = '';
+            let endParam = '';
+            if (segments.intro) {
+              startParam = `&start=${Math.ceil(segments.intro[1])}`;
+              console.info(`SponsorBlock (Safari) intro skip: starting at ${Math.ceil(segments.intro[1])}s`);
+            }
+            if (segments.outro) {
+              endParam = `&end=${Math.floor(segments.outro[0])}`;
+              console.info(`SponsorBlock (Safari) outro skip: ending at ${Math.floor(segments.outro[0])}s`);
+            }
 
-          const ytIframe = document.createElement('iframe');
-          ytIframe.style.cssText = 'width:100%;height:100%;border:0;pointer-events:none;';
-          ytIframe.setAttribute('allow', 'accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share');
-          ytIframe.setAttribute('allowfullscreen', '');
-          ytIframe.setAttribute('referrerpolicy', 'strict-origin-when-cross-origin');
-          ytIframe.src = embedUrl;
-          videoBackdrop.appendChild(ytIframe);
+            // enablejsapi=1 needed for postMessage commands — does NOT trigger IFrame API handshake
+            const embedUrl = `https://www.youtube-nocookie.com/embed/${videoId}?autoplay=1&mute=1&controls=0&playsinline=1&rel=0&iv_load_policy=3&enablejsapi=1&origin=${encodeURIComponent(window.location.origin)}${startParam}${endParam}`;
 
-          // Show immediately — no onStateChange available for plain iframes
-          videoBackdrop.style.opacity = '1';
+            const ytIframe = document.createElement('iframe');
+            ytIframe.style.cssText = 'width:100%;height:100%;border:0;pointer-events:none;';
+            ytIframe.setAttribute('allow', 'accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share');
+            ytIframe.setAttribute('allowfullscreen', '');
+            ytIframe.setAttribute('referrerpolicy', 'strict-origin-when-cross-origin');
+            ytIframe.src = embedUrl;
+            videoBackdrop.appendChild(ytIframe);
 
-          // Create a stub player compatible with all slide management code
-          STATE.slideshow.videoPlayers[itemId] = {
-            _isSafariIframe: true,
-            _iframe: ytIframe,
-            _videoId: videoId,
-            _embedUrl: embedUrl,
-            pauseVideo()   { ytIframe.src = ''; },
-            stopVideo()    { ytIframe.src = ''; },
-            playVideo()    { if (!ytIframe.src) ytIframe.src = this._embedUrl; },
-            mute()         { /* cannot mute plain iframe mid-play */ },
-            unMute()       { /* cannot unmute plain iframe mid-play */ },
-            setVolume()    { /* not available */ },
-            getIframe()    { return ytIframe; },
-            getPlayerState() { return 1; }, // always report PLAYING so fallback timeouts don't fire
-            loadVideoById({ videoId: vid }) {
-              const url = `https://www.youtube-nocookie.com/embed/${vid}?autoplay=1&mute=1&controls=0&playsinline=1&rel=0&iv_load_policy=3&enablejsapi=0`;
-              ytIframe.src = url;
-              this._videoId = vid;
-              this._embedUrl = url;
-            },
-            destroy() { ytIframe.remove(); }
-          };
+            // Show immediately — no onStateChange available for plain iframes
+            videoBackdrop.style.opacity = '1';
 
-          console.log(`🍎 Safari detected — using plain iframe embed for YouTube video ${videoId}`);
+            // Helper: send postMessage command to the iframe player
+            const ytCmd = (func, args = []) => {
+              try {
+                ytIframe.contentWindow?.postMessage(
+                  JSON.stringify({ event: 'command', func, args }),
+                  'https://www.youtube-nocookie.com'
+                );
+              } catch(e) { /* cross-origin access may fail on some iOS versions */ }
+            };
+
+            // Listen for YouTube state changes (e.g. video ended → advance slide)
+            const handleYtMessage = (event) => {
+              if (!event.origin.includes('youtube')) return;
+              try {
+                const data = typeof event.data === 'string' ? JSON.parse(event.data) : event.data;
+                if (data.event === 'onStateChange' && data.info === 0) { // 0 = YT.PlayerState.ENDED
+                  const slide = document.querySelector(`.slide[data-item-id="${itemId}"]`);
+                  if (slide && slide.classList.contains('active')) {
+                    SlideshowManager.nextSlide();
+                  }
+                }
+              } catch(e) {}
+            };
+            window.addEventListener('message', handleYtMessage);
+
+            // Create a postMessage-based stub compatible with all slide management code
+            // Key: we NEVER clear ytIframe.src — that would break the YouTube session and cause Error 153.
+            // Instead we use postMessage pause/play/seek to control playback state.
+            STATE.slideshow.videoPlayers[itemId] = {
+              _isSafariIframe: true,
+              _iframe: ytIframe,
+              _videoId: videoId,
+              _embedUrl: embedUrl,
+              _msgHandler: handleYtMessage,
+              pauseVideo()         { ytCmd('pauseVideo'); },
+              stopVideo()          { ytCmd('pauseVideo'); ytCmd('seekTo', [0, true]); },
+              playVideo()          { ytCmd('playVideo'); },
+              mute()               { ytCmd('mute'); },
+              unMute()             { ytCmd('unMute'); },
+              setVolume(v)         { ytCmd('setVolume', [v]); },
+              getIframe()          { return ytIframe; },
+              getPlayerState()     { return 1; }, // approximate: avoids triggering fallback timeouts
+              loadVideoById({ videoId: vid, startSeconds = 0 }) {
+                if (vid === this._videoId) {
+                  // Same video — seek to start and resume. NEVER change src (would cause Error 153).
+                  ytCmd('seekTo', [startSeconds, true]);
+                  ytCmd('playVideo');
+                } else {
+                  // Different video — need a fresh embed URL
+                  const url = `https://www.youtube-nocookie.com/embed/${vid}?autoplay=1&mute=1&controls=0&playsinline=1&rel=0&iv_load_policy=3&enablejsapi=1&origin=${encodeURIComponent(window.location.origin)}`;
+                  ytIframe.src = url;
+                  this._videoId = vid;
+                  this._embedUrl = url;
+                }
+              },
+              destroy() {
+                window.removeEventListener('message', this._msgHandler);
+                ytIframe.remove();
+              }
+            };
+
+            console.log(`🍎 Safari detected — using plain iframe embed for YouTube video ${videoId}`);
+          });
 
         } else {
           // ── Non-Safari: YouTube IFrame API ──────────────────────────────────────