From 54f71d62aa925f8eb5a7f8399ae0374f313774ea Mon Sep 17 00:00:00 2001
From: Christian Pillsbury <cpillsbury@mux.com>
Date: Tue, 10 Mar 2026 07:24:47 -0700
Subject: [PATCH] fix(spf): prefer MediaSource over ManagedMediaSource (#838)

---
 packages/spf/src/dom/features/setup-mediasource.ts           | 5 ++++-
 .../spf/src/dom/features/tests/setup-mediasource.test.ts     | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/spf/src/dom/features/setup-mediasource.ts b/packages/spf/src/dom/features/setup-mediasource.ts
index 63e2cb17..19549d58 100644
--- a/packages/spf/src/dom/features/setup-mediasource.ts
+++ b/packages/spf/src/dom/features/setup-mediasource.ts
@@ -61,7 +61,10 @@ export function setupMediaSource({
         settingUp = true;
 
         // Create MediaSource
-        const mediaSource = createMediaSource({ preferManaged: true });
+        // Note: ManagedMediaSource (Safari) requires disableRemotePlayback and
+        // startstreaming/endstreaming event handling that SPF doesn't yet implement.
+        // Use standard MediaSource until ManagedMediaSource support is added.
+        const mediaSource = createMediaSource();
 
         // Attach to element
         attachMediaSource(mediaSource, currentOwners.mediaElement!);
diff --git a/packages/spf/src/dom/features/tests/setup-mediasource.test.ts b/packages/spf/src/dom/features/tests/setup-mediasource.test.ts
index 5153938f..e5dfb3ba 100644
--- a/packages/spf/src/dom/features/tests/setup-mediasource.test.ts
+++ b/packages/spf/src/dom/features/tests/setup-mediasource.test.ts
@@ -106,7 +106,7 @@ describe('setupMediaSource', () => {
 
     // Wait for async operation
     await vi.waitFor(() => {
-      expect(createMediaSource).toHaveBeenCalledWith({ preferManaged: true });
+      expect(createMediaSource).toHaveBeenCalledWith();
     });
 
     cleanup();