From 4b3e9c5a297f4c16b6d6d1bc18d13a5af1d7df4c Mon Sep 17 00:00:00 2001
From: Martin Heidegger <mh@leichtgewicht.at>
Date: Mon, 15 Jun 2015 11:11:52 +0900
Subject: [PATCH] Fixing error with missing .Props file

`zip.file` uses `wb.Props` but if `.Props` is undefined it will throw an error. Seems like the safeguard from a few lines below should be before `zip.file`
---
 xlsx.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xlsx.js b/xlsx.js
index c29f5ce..b28055c 100644
--- a/xlsx.js
+++ b/xlsx.js
@@ -11299,12 +11299,12 @@ function write_zip(wb, opts) {
 	get_cell_style(opts.cellXfs, {}, {revssf:{"General":0}});
 
 	f = "docProps/core.xml";
+	if(!wb.Props) wb.Props = {};
 	zip.file(f, write_core_props(wb.Props, opts));
 	ct.coreprops.push(f);
 	add_rels(opts.rels, 2, f, RELS.CORE_PROPS);
 
 	f = "docProps/app.xml";
-	if(!wb.Props) wb.Props = {};
 	wb.Props.SheetNames = wb.SheetNames;
 	wb.Props.Worksheets = wb.SheetNames.length;
 	zip.file(f, write_ext_props(wb.Props, opts));
-- 
2.34.1