From a1a11d482bfcc38bc250c955f23ad190c6db2bec Mon Sep 17 00:00:00 2001
From: banbxio <a31521424@163.com>
Date: Wed, 2 Apr 2025 22:28:06 +0800
Subject: [PATCH] fix(downloader): improve error reporting by returning nil for
 no error

---
 http/downloader.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/http/downloader.go b/http/downloader.go
index b40c9cfb..5ef0e789 100644
--- a/http/downloader.go
+++ b/http/downloader.go
@@ -108,7 +108,12 @@ func downloadStatusHandler(downloaderCache *cache.Cache) handleFunc {
 			"url":       taskCache.URL,
 			"taskID":    taskCache.TaskID.String(),
 			"status":    taskCache.status,
-			"error":     fmt.Sprint(taskCache.err),
+			"error": func() interface{} {
+				if taskCache.err == nil {
+					return nil
+				}
+				return taskCache.err.Error()
+			}(),
 		}
 		w.Header().Set("Content-Type", "application/json")
 		err := json.NewEncoder(w).Encode(&responseBody)