From 85963b19eff80530c301454095377cde1350621a Mon Sep 17 00:00:00 2001
From: Jakub Zych <jakub@golem15.com>
Date: Sat, 10 Oct 2026 16:11:35 +0200
Subject: [PATCH] test(16.2-06): keep happy-dom iframe pages offline in the
 editor tests

The preview tests put payloads with remote URLs into the preview frame's
srcdoc; happy-dom tried to load them (a DNS lookup of example.test on every
run). Tests must not reach the network.
---
 vite.config.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/vite.config.ts b/vite.config.ts
index e6dfbe2..21e2681 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -31,5 +31,11 @@ export default defineConfig({
   test: {
     environment: 'happy-dom',
     include: ['tests/**/*.test.ts'],
+    // Tests never reach the network: happy-dom must not load the pages of
+    // iframes (the preview frame's srcdoc holds test payloads with remote
+    // URLs).
+    environmentOptions: {
+      happyDOM: { settings: { disableIframePageLoading: true } },
+    },
   },
 })