From f180db98470f0bb5a63da911cac2745d151cd6a7 Mon Sep 17 00:00:00 2001
From: Darren Yu <62318640+YUDONGLING@users.noreply.github.com>
Date: Thu, 21 Sep 2023 10:17:40 -0500
Subject: [PATCH] Fix: doc preview src of local storage policy starts with ":/"

---
 service/explorer/file.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/service/explorer/file.go b/service/explorer/file.go
index 177e46d..5174e9f 100644
--- a/service/explorer/file.go
+++ b/service/explorer/file.go
@@ -227,8 +227,10 @@ func (service *FileIDService) CreateDocPreviewSession(ctx context.Context, c *gi
 		return serializer.Err(serializer.CodeNotSet, err.Error(), err)
 	}
 
+	// For newer version of Cloudreve - Local Policy
+	// When do not use a cdn, the downloadURL withouts hosts, like "/api/v3/file/download/xxx"
 	if strings.HasPrefix(downloadURL, "/") {
-		downloadURL = path.Join(model.GetSiteURL().String(), downloadURL)
+		downloadURL = model.GetSiteURL().ResolveReference(downloadURL).String()
 	}
 
 	var resp serializer.DocPreviewSession