From 0648faec67ebb10dab56b82a81303d421ed4775f Mon Sep 17 00:00:00 2001
From: Nick the Sick <nick@blocknotejs.org>
Date: Mon, 31 Mar 2025 17:08:27 +0200
Subject: [PATCH 1/3] fix: check if relatedTarget exists first

Resolves: https://blocknote-js.sentry.io/issues/33990038/?environment=vercel-production&query=is%3Aunresolved%20issue.priority%3A%5Bhigh%2C%20medium%5D&referrer=issue-stream&stream_index=23
---
 packages/react/src/components/Comments/ThreadsSidebar.tsx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/react/src/components/Comments/ThreadsSidebar.tsx b/packages/react/src/components/Comments/ThreadsSidebar.tsx
index 443ebbf0e4..5f6ba726d2 100644
--- a/packages/react/src/components/Comments/ThreadsSidebar.tsx
+++ b/packages/react/src/components/Comments/ThreadsSidebar.tsx
@@ -44,7 +44,8 @@ const ThreadItem = React.memo(
         // If the focused element is within the action toolbar, we don't want to
         // blur the thread for UX reasons.
         if (
-          (event.relatedTarget as HTMLElement).closest(".bn-action-toolbar")
+          !event.relatedTarget ||
+          event.relatedTarget.closest(".bn-action-toolbar")
         ) {
           return;
         }

From 637f940fe547da75f4de17e9c46c1022dd8b92a6 Mon Sep 17 00:00:00 2001
From: Nick the Sick <nick@blocknotejs.org>
Date: Mon, 31 Mar 2025 17:09:19 +0200
Subject: [PATCH 2/3] fix: early exit if html ends up being empty

Resolves: https://blocknote-js.sentry.io/issues/32467184
---
 packages/core/src/editor/BlockNoteEditor.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/core/src/editor/BlockNoteEditor.ts b/packages/core/src/editor/BlockNoteEditor.ts
index b1caec71b0..aa8ffea6e3 100644
--- a/packages/core/src/editor/BlockNoteEditor.ts
+++ b/packages/core/src/editor/BlockNoteEditor.ts
@@ -1502,6 +1502,9 @@ export class BlockNoteEditor<
     if (!raw) {
       htmlToPaste = this.convertHtmlToBlockNoteHtml(html);
     }
+    if (!htmlToPaste) {
+      return;
+    }
     this.prosemirrorView?.pasteHTML(htmlToPaste);
   }
 

From dec845e25e3311fbc37a6d4ef940a5395b1b8b4e Mon Sep 17 00:00:00 2001
From: Nick the Sick <nick@blocknotejs.org>
Date: Mon, 31 Mar 2025 17:12:05 +0200
Subject: [PATCH 3/3] fix: only set state if it exists

Resolves: https://blocknote-js.sentry.io/issues/32235378/
---
 .../core/src/extensions/SuggestionMenu/SuggestionPlugin.ts    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/core/src/extensions/SuggestionMenu/SuggestionPlugin.ts b/packages/core/src/extensions/SuggestionMenu/SuggestionPlugin.ts
index 6564a1993b..c21a8ddb5e 100644
--- a/packages/core/src/extensions/SuggestionMenu/SuggestionPlugin.ts
+++ b/packages/core/src/extensions/SuggestionMenu/SuggestionPlugin.ts
@@ -86,7 +86,9 @@ class SuggestionMenuView<
     this.pluginState = stopped ? prev : next;
 
     if (stopped || !this.editor.isEditable) {
-      this.state!.show = false;
+      if (this.state) {
+        this.state.show = false;
+      }
       this.emitUpdate(this.pluginState!.triggerCharacter);
 
       return;