From 649ffa93b80b4beed0e5be6d9f3eaa1901e462a4 Mon Sep 17 00:00:00 2001
From: John Factotum <50942278+johnfactotum@users.noreply.github.com>
Date: Wed, 26 Apr 2023 17:31:59 +0800
Subject: [PATCH] EPUB: add support for subtitle

---
 epub.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/epub.js b/epub.js
index 65cda41..40971c6 100644
--- a/epub.js
+++ b/epub.js
@@ -719,6 +719,7 @@ export class EPUB {
         const title = metadata?.title?.[0]
         this.metadata = {
             title: title?.value,
+            subtitle: metadata?.title?.find(x => x.titleType === 'subtitle')?.value,
             sortAs: title?.fileAs,
             language: metadata?.language,
             identifier: getIdentifier(opf),