From 2c787b609d05a9e5a1ed8fdc1f8b1e8ca7a14c49 Mon Sep 17 00:00:00 2001
From: Lauri <lauri.lehtmaa@gmail.com>
Date: Wed, 20 Nov 2024 12:30:22 +0100
Subject: [PATCH] Fix memory leak

Presence component doesn't unmount itself, and by keeping a reference around for node's styles after the node has unmounted, the node itself cannot ever get garbage collected. This affects pretty much all radix primitive components.
---
 packages/react/presence/src/Presence.tsx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/react/presence/src/Presence.tsx b/packages/react/presence/src/Presence.tsx
index e9da5615c..51066bd8a 100644
--- a/packages/react/presence/src/Presence.tsx
+++ b/packages/react/presence/src/Presence.tsx
@@ -153,7 +153,12 @@ function usePresence(present: boolean) {
   return {
     isPresent: ['mounted', 'unmountSuspended'].includes(state),
     ref: React.useCallback((node: HTMLElement) => {
-      if (node) stylesRef.current = getComputedStyle(node);
+      if (node) {
+        stylesRef.current = getComputedStyle(node);
+      }
+      else {
+        stylesRef.current = {} as any;
+      }
       setNode(node);
     }, []),
   };