From e8452c91dfb8771a08d16fe5ead44d51f0150596 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=81=E9=94=90?= <dingrui@jingdata.com>
Date: Mon, 6 Dec 2021 17:18:09 +0800
Subject: [PATCH] fix: optional chaining bug

---
 package.json                     | 2 +-
 src/components/Viewer/Viewer.vue | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 8e0b688..4d6d7c3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pdf-viewer-vue",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "PDF viewer component for Vue 2 and Vue 3",
   "keywords": [
     "vue",
diff --git a/src/components/Viewer/Viewer.vue b/src/components/Viewer/Viewer.vue
index 5acaa55..76366f0 100644
--- a/src/components/Viewer/Viewer.vue
+++ b/src/components/Viewer/Viewer.vue
@@ -207,7 +207,7 @@ export default {
   methods: {
     printPDF() {
       const contentWindow = this.$refs.iframe.getContentWindow()
-      contentWindow?.print()
+      contentWindow.print()
     },
     updateZoomFullpage() {
       const perViewerHeight = this.viewerContentHeight / this.total