diff --git a/packages/editor/src/editor/Canvas.tsx b/packages/editor/src/editor/Canvas.tsx
index dd563b4..8c868fa 100644
--- a/packages/editor/src/editor/Canvas.tsx
+++ b/packages/editor/src/editor/Canvas.tsx
@@ -496,7 +496,7 @@ function NodeView(props: {
                   src={node.props.src}
                   width={rect.w}
                   height={rect.h}
-                  autoPlay={node.props.autoplay ?? true}
+                  autoPlay={node.props.autoplay ?? false}
                   playsInline
                   loop={node.props.loop ?? false}
                   muted={node.props.muted ?? false}
diff --git a/packages/sdk/src/core/goview/convert.ts b/packages/sdk/src/core/goview/convert.ts
index 2a95fce..2880625 100644
--- a/packages/sdk/src/core/goview/convert.ts
+++ b/packages/sdk/src/core/goview/convert.ts
@@ -124,7 +124,15 @@ function isIframe(c: GoViewComponentLike): boolean {
     // keep the plain 'web' check last; it's broad and may overlap other widgets.
     k === 'web' ||
     k.endsWith('_web') ||
-    k.startsWith('web_')
+    k.startsWith('web_') ||
+    // common embed platforms (usually rendered in an <iframe>)
+    k.includes('youtube') ||
+    k.includes('youtu') ||
+    k.includes('vimeo') ||
+    k.includes('bilibili') ||
+    k.includes('youku') ||
+    k.includes('tencent') ||
+    k.includes('iqiyi')
   );
 }