From 9e8532a2f43c73a569123b98a9c31b8fe1940f2f Mon Sep 17 00:00:00 2001
From: Martin Trapp <94928215+martrapp@users.noreply.github.com>
Date: Tue, 2 Apr 2024 21:05:01 +0200
Subject: [PATCH] Fix NPE (#59)

---
 .changeset/tidy-pots-turn.md                  | 5 +++++
 components/starlight/StarlightConnector.astro | 6 ++----
 2 files changed, 7 insertions(+), 4 deletions(-)
 create mode 100644 .changeset/tidy-pots-turn.md

diff --git a/.changeset/tidy-pots-turn.md b/.changeset/tidy-pots-turn.md
new file mode 100644
index 0000000..f1475cf
--- /dev/null
+++ b/.changeset/tidy-pots-turn.md
@@ -0,0 +1,5 @@
+---
+"astro-vtbot": patch
+---
+
+Fixes a bug accessing an attribute of null when linking to view transition pages outside the starlight site.
diff --git a/components/starlight/StarlightConnector.astro b/components/starlight/StarlightConnector.astro
index 77400d7..4225986 100644
--- a/components/starlight/StarlightConnector.astro
+++ b/components/starlight/StarlightConnector.astro
@@ -17,9 +17,7 @@ export interface Props {}
 	function closeMobileMenu() {
 		if (document.body.hasAttribute('data-mobile-menu-expanded')) {
 			document.body
-				.querySelector('starlight-menu-button')!
-				.closest('nav')!
-				.dispatchEvent(
+				.querySelector('starlight-menu-button')?.closest('nav')?.dispatchEvent(
 					new KeyboardEvent('keyup', {
 						key: 'Escape',
 						code: 'Escape',
@@ -35,7 +33,7 @@ export interface Props {}
 	}
 
 	function markMainFrameForReplacementSwap(doc: Document) {
-		doc.body.querySelector('div.main-frame')!.setAttribute('data-vtbot-replace', 'main');
+		doc.body.querySelector('div.main-frame')?.setAttribute('data-vtbot-replace', 'main');
 	}
 
 	function setTransitionScope(e: TransitionBeforePreparationEvent) {