Fix-component-undefined-svelte-v5 (#12102) (#12129)

* - fix: 'component is not defined' error when unmount svelte 5 component * added changeset * Moving unmount listener to where the component is defined. * Update .changeset/eighty-ligers-punch.md --------- Co-authored-by: Hermit <70563349+hermit99@users.noreply.github.com>
withastro · Oct 5, 2024 · 5bc6223 · 5bc6223
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diff --git a/.changeset/eighty-ligers-punch.md b/.changeset/eighty-ligers-punch.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/svelte': patch
+---
+
+Fixes an Reference Error that occurred during client transitions
diff --git a/packages/integrations/svelte/client-v5.js b/packages/integrations/svelte/client-v5.js
@@ -39,8 +39,7 @@ export default (element) => {
 				},
 			});
 			existingApplications.set(element, component);
+			element.addEventListener('astro:unmount', () => unmount(component), { once: true });
 		}
-
-		element.addEventListener('astro:unmount', () => unmount(component), { once: true });
 	};
 };