From f729f1c9883f79c3ec53795b41e3316c0cb57d8c Mon Sep 17 00:00:00 2001
From: Titus Wormer <tituswormer@gmail.com>
Date: Mon, 30 Sep 2024 16:27:52 +0200
Subject: [PATCH] Fix race condition around timeou of slow bodies

Closes remarkjs/remark-lint-no-dead-urls#53.
---
 lib/index.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/index.js b/lib/index.js
index 92d71fb..02c6386 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -195,6 +195,14 @@ async function deadOrAliveInternal(state, url) {
   let response
 
   try {
+    // Create a manually abortable fetch,
+    // instead of `AbortSignal.timeout(state.timeout)`.
+    // This way we only abort slow requests; not the other work.
+    const controller = new AbortController()
+    const id = setTimeout(function () {
+      controller.abort()
+    }, state.timeout)
+
     response = await fetch(url, {
       headers: {
         userAgent: state.userAgent,
@@ -207,8 +215,10 @@ async function deadOrAliveInternal(state, url) {
       },
       method: 'GET',
       redirect: 'manual',
-      signal: AbortSignal.timeout(state.timeout)
+      signal: controller.signal
     })
+
+    clearTimeout(id)
   } catch (error) {
     if (state.retries < state.maxRetries) return retry(state, url)