tweak

Author: trueadm

packages/svelte/src/compiler/phases/3-transform/client/visitors/SvelteBoundary.js

@@ -18,14 +18,20 @@ export function SvelteBoundary(node, context) {
 
 	for (const attribute of node.attributes) {
 		if (
-			attribute.type === 'Attribute' &&
-			attribute.name === 'onerror' &&
-			attribute.value !== true &&
-			!Array.isArray(attribute.value)
+			attribute.type !== 'Attribute' ||
+			attribute.value === true ||
+			Array.isArray(attribute.value)
 		) {
+			continue;
+		}
+		if (attribute.name === 'onerror') {
 			onerror = /** @type {Expression} */ (
 				context.visit(attribute.value.expression, context.state)
 			);
+		} else if (attribute.name === 'failed') {
+			failed_param = /** @type {Expression} */ (
+				context.visit(attribute.value.expression, context.state)
+			);
 		}
 	}