From 5cd356631c55a9d24166202b3c4a4bdd64e7f369 Mon Sep 17 00:00:00 2001
From: Karl Seguin <k@openmymind.io>
Date: Mon, 30 Mar 2026 15:42:08 +0800
Subject: [PATCH] unregister before releasingRef to avoid potential
 use-after-free

---
 src/browser/webapi/IntersectionObserver.zig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/browser/webapi/IntersectionObserver.zig b/src/browser/webapi/IntersectionObserver.zig
index 5d6c6e4d..cea88bdb 100644
--- a/src/browser/webapi/IntersectionObserver.zig
+++ b/src/browser/webapi/IntersectionObserver.zig
@@ -190,11 +190,11 @@ pub fn disconnect(self: *IntersectionObserver, page: *Page) void {
     const observing_count = self._observing.items.len;
     self._observing.clearRetainingCapacity();
 
+    page.unregisterIntersectionObserver(self);
+
     if (observing_count > 0) {
         _ = self.releaseRef(page._session);
     }
-
-    page.unregisterIntersectionObserver(self);
 }
 
 pub fn takeRecords(self: *IntersectionObserver, page: *Page) ![]*IntersectionObserverEntry {