From 03d5cde838eb134639c62e855ffbdbc4c243a787 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E5=BE=B7=E5=AE=87?= <kvtodev@outlook.com>
Date: Mon, 21 Sep 2026 15:11:30 +0800
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---
 packages/model3d-viewer/src/loader.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/packages/model3d-viewer/src/loader.ts b/packages/model3d-viewer/src/loader.ts
index 018b5b949..574d8c153 100644
--- a/packages/model3d-viewer/src/loader.ts
+++ b/packages/model3d-viewer/src/loader.ts
@@ -99,7 +99,15 @@ export async function readModel3dViewerSourceBytes(
     assertModel3dViewerByteLength(declaredLength);
   }
 
-  const data = await response.arrayBuffer();
+  let data: ArrayBuffer;
+  try {
+    data = await response.arrayBuffer();
+  } catch (error) {
+    throw new Model3dViewerLoadError(
+      'load-failed',
+      `模型数据读取失败：${describeModel3dViewerError(error)}`,
+    );
+  }
   assertModel3dViewerByteLength(data.byteLength);
   return data;
 }