From bd70ab621c237d00597d409fff2ad84ec8bc98a2 Mon Sep 17 00:00:00 2001
From: paoloricciuti <ricciutipaolo@gmail.com>
Date: Mon, 30 Mar 2026 10:33:36 +0200
Subject: [PATCH] fix: events dom access

---
 .../internal/client/dom/elements/events.js    | 42 ++++++++++++-------
 1 file changed, 27 insertions(+), 15 deletions(-)

diff --git a/packages/svelte/src/internal/client/dom/elements/events.js b/packages/svelte/src/internal/client/dom/elements/events.js
index e598a78949..23022170eb 100644
--- a/packages/svelte/src/internal/client/dom/elements/events.js
+++ b/packages/svelte/src/internal/client/dom/elements/events.js
@@ -11,6 +11,14 @@ import {
 	set_active_reaction
 } from '../../runtime.js';
 import { without_reactive_context } from './bindings/shared.js';
+import {
+	remove_attribute,
+	dispatch_event,
+	add_event_listener,
+	remove_event_listener,
+	get_parent_node
+} from '../operations.js';
+import { renderer } from '../../custom-renderer/state.js';
 
 /**
  * Used on elements, as a map of event type -> event handler,
@@ -30,10 +38,11 @@ export const root_event_handles = new Set();
  * @param {HTMLElement} dom
  */
 export function replay_events(dom) {
+	// custom renderers safe since it immediately returns if not hydrating
 	if (!hydrating) return;
 
-	dom.removeAttribute('onload');
-	dom.removeAttribute('onerror');
+	remove_attribute(dom, 'onload');
+	remove_attribute(dom, 'onerror');
 	// @ts-expect-error
 	const event = dom.__e;
 	if (event !== undefined) {
@@ -41,7 +50,7 @@ export function replay_events(dom) {
 		dom.__e = undefined;
 		queueMicrotask(() => {
 			if (dom.isConnected) {
-				dom.dispatchEvent(event);
+				dispatch_event(dom, event);
 			}
 		});
 	}
@@ -79,10 +88,10 @@ export function create_event(event_name, dom, handler, options = {}) {
 		event_name === 'wheel'
 	) {
 		queue_micro_task(() => {
-			dom.addEventListener(event_name, target_handler, options);
+			add_event_listener(dom, event_name, target_handler, options);
 		});
 	} else {
-		dom.addEventListener(event_name, target_handler, options);
+		add_event_listener(dom, event_name, target_handler, options);
 	}
 
 	return target_handler;
@@ -102,7 +111,7 @@ export function on(element, type, handler, options = {}) {
 	var target_handler = create_event(type, element, handler, options);
 
 	return () => {
-		element.removeEventListener(type, target_handler, options);
+		remove_event_listener(element, type, target_handler, options);
 	};
 }
 
@@ -119,16 +128,18 @@ export function event(event_name, dom, handler, capture, passive) {
 	var target_handler = create_event(event_name, dom, handler, options);
 
 	if (
-		dom === document.body ||
-		// @ts-ignore
-		dom === window ||
-		// @ts-ignore
-		dom === document ||
-		// Firefox has quirky behavior, it can happen that we still get "canplay" events when the element is already removed
-		dom instanceof HTMLMediaElement
+		// if there's a renderer we will never add to body, window or document.
+		renderer == null &&
+		(dom === document.body ||
+			// @ts-ignore
+			dom === window ||
+			// @ts-ignore
+			dom === document ||
+			// Firefox has quirky behavior, it can happen that we still get "canplay" events when the element is already removed
+			dom instanceof HTMLMediaElement)
 	) {
 		teardown(() => {
-			dom.removeEventListener(event_name, target_handler, options);
+			remove_event_listener(dom, event_name, target_handler, options);
 		});
 	}
 }
@@ -171,6 +182,7 @@ let last_propagated_event = null;
  * @returns {void}
  */
 export function handle_event_propagation(event) {
+	// this function is custom renderers safe since it's invoked in `mount`
 	var handler_element = this;
 	var owner_document = /** @type {Node} */ (handler_element).ownerDocument;
 	var event_name = event.type;
@@ -260,7 +272,7 @@ export function handle_event_propagation(event) {
 			/** @type {null | Element} */
 			var parent_element =
 				current_target.assignedSlot ||
-				current_target.parentNode ||
+				get_parent_node(current_target) ||
 				/** @type {any} */ (current_target).host ||
 				null;