From 2f2ffe1ea6ecc1c4d26dc9409aa039e425296fc6 Mon Sep 17 00:00:00 2001
From: Arjun Chikara <arjunchikara16@gmail.com>
Date: Fri, 31 Jul 2026 14:50:24 +0530
Subject: [PATCH] =?UTF-8?q?docs(readme):=20CI=20control=20experiment=20?=
 =?UTF-8?q?=E2=80=94=20documentation-only=20no-op?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Adds a single HTML comment to README.md and nothing else. The dependency
tree is untouched (package.json and package-lock.json are identical to
main), so this isolates whether the `test_node (20)` matrix leg fails on
any PR opened today regardless of its diff.

Hypothesis: test/node/node.js installs unpinned `jsdom@latest`, and
jsdom 30.x dropped Node 20 (engines ^22.22.2 || ^24.15.0 || >=26.0.0),
so the Node 20 leg cannot install it. If this PR also fails test_node
(20), the failure on #277 is environmental, not caused by that diff.

Do not merge.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 505643baa..4902f5bf7 100644
--- a/README.md
+++ b/README.md
@@ -183,3 +183,5 @@ Thanks to Marat Dulin for his [css-selector-parser](https://www.npmjs.com/packag
 ## Licenses
 
 Axe-core is distributed under the [Mozilla Public License, version 2.0](LICENSE). It comes bundled with several dependencies which are distributed under their own terms. (See [LICENSE-3RD-PARTY.txt](LICENSE-3RD-PARTY.txt))
+
+<!-- CI control experiment: documentation-only no-op to observe the test_node matrix on an untouched dependency tree. Do not merge; delete this line and the branch once CI has reported. -->