From 940b54a0d1709edc2c10fa196327a562742f88ef Mon Sep 17 00:00:00 2001
From: Robert Knight <robert@microbit.org>
Date: Mon, 10 Aug 2026 17:31:19 +0100
Subject: [PATCH] Remove blocks rendering iframe from tab order

---
 src/vanilla/makecode-render-blocks.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/vanilla/makecode-render-blocks.ts b/src/vanilla/makecode-render-blocks.ts
index 49d3158..f585282 100644
--- a/src/vanilla/makecode-render-blocks.ts
+++ b/src/vanilla/makecode-render-blocks.ts
@@ -309,6 +309,7 @@ function createIframe(
   f.style.whiteSpace = 'nowrap';
   f.setAttribute('loading', 'eager');
   f.setAttribute('aria-hidden', 'true');
+  f.inert = true;
   f.src = src;
   document.body.appendChild(f);
   return f;