From 7b1e4ff6a97ed0af7d64f87699585279b45fbe2f Mon Sep 17 00:00:00 2001
From: Vance Ingalls <vance@heygen.com>
Date: Mon, 24 Aug 2026 18:52:52 -0700
Subject: [PATCH] fix(player): type runtime tag boundaries

---
 packages/player/src/runtime-in-srcdoc.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/player/src/runtime-in-srcdoc.ts b/packages/player/src/runtime-in-srcdoc.ts
index 640958776..190c73367 100644
--- a/packages/player/src/runtime-in-srcdoc.ts
+++ b/packages/player/src/runtime-in-srcdoc.ts
@@ -33,7 +33,7 @@ function alreadyHasRuntime(html: string, runtimeUrl: string): boolean {
 }
 
 type OpeningTag = { index: number; end: number };
-const OPENING_TAG_BOUNDARIES = new Set([">", " ", "\t", "\n", "\r", "\f"]);
+const OPENING_TAG_BOUNDARIES = new Set<string | undefined>([">", " ", "\t", "\n", "\r", "\f"]);
 
 /** Find an opening tag in one linear pass, without a backtracking regex over caller-owned HTML. */
 function findOpeningTag(html: string, tagName: string): OpeningTag | null {