From 271dfaed2b15251861bc3bb5748d1d062da3c084 Mon Sep 17 00:00:00 2001
From: Monti-27 <msaini27004@gmail.com>
Date: Fri, 27 Mar 2026 20:12:55 +0530
Subject: [PATCH] fix abortsignal event names

---
 core/runtime/src/abort/mod.rs   |  2 +-
 core/runtime/src/abort/tests.rs | 45 +++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/core/runtime/src/abort/mod.rs b/core/runtime/src/abort/mod.rs
index 6fddc490b83..0834b497ec6 100644
--- a/core/runtime/src/abort/mod.rs
+++ b/core/runtime/src/abort/mod.rs
@@ -159,7 +159,7 @@ impl JsAbortSignal {
         context: &mut Context,
     ) -> JsResult<()> {
         if event_type.to_std_string_escaped() != "abort" {
-            return Err(js_error!(TypeError: "AbortSignal only supports the 'abort' event type"));
+            return Ok(());
         }
         if self.aborted.get() {
             callback.call(&JsValue::undefined(), &[], context)?;
diff --git a/core/runtime/src/abort/tests.rs b/core/runtime/src/abort/tests.rs
index 5c6bfb1d71d..4ccc2e3ebff 100644
--- a/core/runtime/src/abort/tests.rs
+++ b/core/runtime/src/abort/tests.rs
@@ -117,6 +117,51 @@ fn add_event_listener_fires_on_abort() {
     ]);
 }
 
+#[test]
+fn add_event_listener_ignores_unknown_event_names() {
+    run_test_actions([
+        TestAction::run(
+            r"
+            let ctrl = new AbortController();
+            let called = false;
+            ctrl.signal.addEventListener('nope', function() {
+                called = true;
+            });
+            ctrl.abort();
+            ",
+        ),
+        TestAction::inspect_context(|ctx| {
+            ctx.run_jobs().unwrap();
+        }),
+        TestAction::run(
+            r"
+            if (called) {
+                throw new Error('unknown event listener should not fire');
+            }
+            ",
+        ),
+    ]);
+}
+
+#[test]
+fn add_event_listener_ignores_unknown_event_names_after_abort() {
+    run_test_actions([TestAction::run(
+        r"
+        let ctrl = new AbortController();
+        ctrl.abort();
+
+        let called = false;
+        ctrl.signal.addEventListener('nope', function() {
+            called = true;
+        });
+
+        if (called) {
+            throw new Error('unknown event listener should not fire after abort');
+        }
+        ",
+    )]);
+}
+
 #[test]
 fn multiple_listeners() {
     run_test_actions([