From 8e2cd0b0d6a5672858959471eadbbfa31b17176b Mon Sep 17 00:00:00 2001
From: Calum Muir <calum@muir.in>
Date: Sun, 7 Jun 2026 12:55:01 +0000
Subject: [PATCH] Rewrite studio asset paths from /static/ to /studio/static/
 at serve time

Sanity v3 basePath only affects the SPA router, not Vite's build output.
The built index.html hardcodes /static/ so we rewrite on the way out.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/pages/studio/[...path].ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/pages/studio/[...path].ts b/src/pages/studio/[...path].ts
index 748be75..da40acb 100644
--- a/src/pages/studio/[...path].ts
+++ b/src/pages/studio/[...path].ts
@@ -14,7 +14,13 @@ export const GET: APIRoute = () => {
     );
   }
 
-  return new Response(readFileSync(indexPath, "utf-8"), {
+  // Rewrite absolute asset paths from /static/ to /studio/static/ so
+  // the studio's JS/CSS/icons load correctly when hosted at /studio.
+  const html = readFileSync(indexPath, "utf-8")
+    .replaceAll('="/static/', '="/studio/static/')
+    .replaceAll("='/static/", "='/studio/static/");
+
+  return new Response(html, {
     status: 200,
     headers: { "Content-Type": "text/html; charset=utf-8" },
   });