we need that error

Rich-Harris · Rich-Harris · commit 84182987264b · 2025-09-09T10:19:58.000-04:00
diff --git a/packages/svelte/src/internal/client/dom/blocks/boundary.js b/packages/svelte/src/internal/client/dom/blocks/boundary.js
@@ -404,7 +404,13 @@ function move_effect(effect, fragment) {
 }
 
 export function get_boundary() {
-	return /** @type {Effect} */ (active_effect).b;
+	const boundary = /** @type {Effect} */ (active_effect).b;
+
+	if (boundary === null) {
+		e.await_outside_boundary();
+	}
+
+	return boundary;
 }
 
 export function pending() {

Original file line number	Diff line number	Diff line change
`@@ -404,7 +404,13 @@ function move_effect(effect, fragment) {`
`404`	`404`	`}`
`405`	`405`
`406`	`406`	`export function get_boundary() {`
`407`		`- return /** @type {Effect} */ (active_effect).b;`
	`407`	`+ const boundary = /** @type {Effect} */ (active_effect).b;`
	`408`	`+`
	`409`	`+ if (boundary === null) {`
	`410`	`+ e.await_outside_boundary();`
	`411`	`+ }`
	`412`	`+`
	`413`	`+ return boundary;`
`408`	`414`	`}`
`409`	`415`
`410`	`416`	`export function pending() {`