diff --git a/packages/svelte/src/internal/client/dom/blocks/boundary.js b/packages/svelte/src/internal/client/dom/blocks/boundary.js
index 2387b22f51..20839a7783 100644
--- a/packages/svelte/src/internal/client/dom/blocks/boundary.js
+++ b/packages/svelte/src/internal/client/dom/blocks/boundary.js
@@ -2,7 +2,7 @@
 
 import { BOUNDARY_EFFECT, EFFECT_TRANSPARENT } from '#client/constants';
 import { component_context, set_component_context } from '../../context.js';
-import { invoke_error_boundary, reset_is_throwing_error } from '../../error-handling.js';
+import { invoke_error_boundary } from '../../error-handling.js';
 import { block, branch, destroy_effect, pause_effect } from '../../reactivity/effects.js';
 import {
 	active_effect,
@@ -80,7 +80,6 @@ export function boundary(node, props, boundary_fn) {
 				with_boundary(boundary, () => {
 					is_creating_fallback = false;
 					boundary_effect = branch(() => boundary_fn(anchor));
-					reset_is_throwing_error();
 				});
 			};
 
@@ -119,7 +118,6 @@ export function boundary(node, props, boundary_fn) {
 							invoke_error_boundary(error, /** @type {Effect} */ (boundary.parent));
 						}
 
-						reset_is_throwing_error();
 						is_creating_fallback = false;
 					});
 				});
@@ -131,7 +129,6 @@ export function boundary(node, props, boundary_fn) {
 		}
 
 		boundary_effect = branch(() => boundary_fn(anchor));
-		reset_is_throwing_error();
 	}, EFFECT_TRANSPARENT | BOUNDARY_EFFECT);
 
 	if (hydrating) {
diff --git a/packages/svelte/src/internal/client/error-handling.js b/packages/svelte/src/internal/client/error-handling.js
index 2e5c31b7a1..c27ba1a360 100644
--- a/packages/svelte/src/internal/client/error-handling.js
+++ b/packages/svelte/src/internal/client/error-handling.js
@@ -2,19 +2,13 @@
 import { DEV } from 'esm-env';
 import { FILENAME } from '../../constants.js';
 import { is_firefox } from './dom/operations.js';
-import { BOUNDARY_EFFECT, DESTROYED } from './constants.js';
+import { BOUNDARY_EFFECT } from './constants.js';
 import { define_property } from '../shared/utils.js';
 
 // Used for DEV time error handling
 /** @param {WeakSet<Error>} value */
 const adjusted_errors = new WeakSet();
 
-let is_throwing_error = false;
-
-export function reset_is_throwing_error() {
-	is_throwing_error = false;
-}
-
 /** @type {null | unknown} */
 let current_error = null;
 
@@ -58,20 +52,9 @@ export function invoke_error_boundary(error, effect) {
 		current = current.parent;
 	}
 
-	is_throwing_error = false;
 	throw error;
 }
 
-/**
- * @param {Effect} effect
- */
-function should_rethrow_error(effect) {
-	return (
-		(effect.f & DESTROYED) === 0 &&
-		(effect.parent === null || (effect.parent.f & BOUNDARY_EFFECT) === 0)
-	);
-}
-
 /**
  * Add useful information to the error message/stack
  * @param {Error} error