Fixes an TypeError when using without (#10456)

withastro · Mar 15, 2024 · 1900a8f · 1900a8f
1 parent 8a80dbf
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diff --git a/.changeset/thirty-dancers-wink.md b/.changeset/thirty-dancers-wink.md
@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Fixes an error when using `astro:transtions/client` without `<ViewTransitions/>`
diff --git a/packages/astro/src/transitions/router.ts b/packages/astro/src/transitions/router.ts
@@ -622,7 +622,7 @@ const onScrollEnd = () => {
 	// "scrollend" events. To avoid redundant work and expensive calls to
 	// `replaceState()`, we simply check that the values are different before
 	// updating.
-	if (scrollX !== history.state.scrollX || scrollY !== history.state.scrollY) {
+	if (history.state && (scrollX !== history.state.scrollX || scrollY !== history.state.scrollY)) {
 		updateScrollPosition({ scrollX, scrollY });
 	}
 };