From 7cd3ebfcba7d64ac690bc17ea9ef53e218b80896 Mon Sep 17 00:00:00 2001
From: Huang Xin <chrox.huang@gmail.com>
Date: Thu, 23 Oct 2025 21:38:44 +0800
Subject: [PATCH] compat: support .fb.zip files as FBZ format (#2307)

Although .fb.zip is not an officially recognized extension, many FBZ files use this format, so it's now treated as FBZ for compatibility.
---
 apps/readest-app/src/libs/document.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/apps/readest-app/src/libs/document.ts b/apps/readest-app/src/libs/document.ts
index 9370eabc..a8ab4e0c 100644
--- a/apps/readest-app/src/libs/document.ts
+++ b/apps/readest-app/src/libs/document.ts
@@ -195,6 +195,7 @@ export class DocumentLoader {
   private isFBZ(): boolean {
     return (
       this.file.type === 'application/x-zip-compressed-fb2' ||
+      this.file.name.endsWith('.fb.zip') ||
       this.file.name.endsWith('.fb2.zip') ||
       this.file.name.endsWith(`.${EXTS.FBZ}`)
     );