diff --git a/server/player/index.html b/server/player/index.html
index 6da4291..a56399b 100644
--- a/server/player/index.html
+++ b/server/player/index.html
@@ -689,7 +689,10 @@
           }
           overlay.remove();
         };
-        container.style.position = 'relative';
+        // Don't override container.style.position here — #playerContainer is already
+        // position:fixed so absolute children anchor to it. Setting position:relative
+        // collapsed the container to 0 height (no content sizing it in normal flow),
+        // which made the YT iframe render black.
         container.appendChild(overlay);
       }
 
diff --git a/server/player/sw.js b/server/player/sw.js
index ef51f89..1ba0022 100644
--- a/server/player/sw.js
+++ b/server/player/sw.js
@@ -1,4 +1,4 @@
-const CACHE_NAME = 'rd-player-v6';
+const CACHE_NAME = 'rd-player-v7';
 
 // Install: skip waiting to activate immediately
 self.addEventListener('install', (event) => {