From 585bd271fa3f74283923d133f657a5ae65c0baf3 Mon Sep 17 00:00:00 2001
From: Jeff Witt <152964771+witt3rd@users.noreply.github.com>
Date: Thu, 5 Feb 2026 06:46:20 -0500
Subject: [PATCH] Fix null reference error in waitError when act.result is
 undefined

The waitError function assumes act.result is already initialized, but
this is not always the case. When a wait error occurs before act.result
is set, the function crashes with:

  TypeError: Cannot set property 'found' of undefined

This adds a nullish coalescing assignment to initialize act.result to
an empty object if it's undefined before setting properties on it.
---
 run.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/run.js b/run.js
index 8690a0a7..c3fef3c4 100644
--- a/run.js
+++ b/run.js
@@ -759,6 +759,7 @@ const isTrue = (object, specs) => {
 // Adds a wait error result to an act.
 const waitError = (page, act, error, what) => {
   console.log(`ERROR waiting for ${what} (${error.message})`);
+  act.result ??= {};
   act.result.found = false;
   act.result.url = page.url();
   act.result.error = `ERROR waiting for ${what}`;