diff --git a/src/index.ts b/src/index.ts
index dff9e11..de2f54c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -263,6 +263,8 @@ async function streamUploadToDrive(accessToken: string, stream: ReadableStream |
 
     const uploadUrl = initRes.headers.get("Location");
     if (!uploadUrl) {
+        console.error(initRes.status);
+        console.error(await initRes.text());
         throw new Error("Failed to get upload URL");
     }