From 71b4d2ef389a889f2c6177ecc424409a64135c2c Mon Sep 17 00:00:00 2001
From: Drew Dibble <a.d.dibble@gmail.com>
Date: Mon, 22 Jun 2026 18:51:59 -0600
Subject: [PATCH] fix(runframe): use the embedded eval worker in CLI standalone
 mode

The CLI branch rendered <RunFrameForCli {...runframeStandaloneProps} />.
runframeStandaloneProps carries the embedded eval-worker blob under
evalWebWorkerBlobUrl, but RunFrameForCli reads workerBlobUrl, so the blob
was silently dropped. RunFrameForCli then computed
forceLatestEvalVersion={!props.workerBlobUrl && shouldLoadLatestEval} -> true
and fetched eval from the CDN instead of using the embedded worker.

Forward the blob explicitly as workerBlobUrl (and pass enableFetchProxy).
No-op for the default flow (no embedded worker -> evalWebWorkerBlobUrl is
undefined -> still loads latest eval from CDN); only changes behavior when a
worker is actually embedded, which is the case this is meant to handle
(offline / air-gapped / pinned-eval / locally-built-eval tsci dev).
---
 lib/components/RunFrameWithApi/standalone.tsx | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/components/RunFrameWithApi/standalone.tsx b/lib/components/RunFrameWithApi/standalone.tsx
index f1d871b6c..726521b15 100644
--- a/lib/components/RunFrameWithApi/standalone.tsx
+++ b/lib/components/RunFrameWithApi/standalone.tsx
@@ -105,7 +105,17 @@ const runframeStandaloneProps: ComponentProps<typeof RunFrameWithApi> = {
       />,
     )
   } else if (window.TSCIRCUIT_USE_RUNFRAME_FOR_CLI) {
-    root.render(<RunFrameForCli {...runframeStandaloneProps} />)
+    // RunFrameForCli reads the embedded eval worker from `workerBlobUrl`, while the
+    // standalone build injects it as `evalWebWorkerBlobUrl` — map it explicitly so
+    // the embedded worker is used instead of forcing a CDN eval fetch.
+    // Props are forwarded by name (not spread), so any new standalone prop that
+    // RunFrameForCli should receive must be added here.
+    root.render(
+      <RunFrameForCli
+        workerBlobUrl={runframeStandaloneProps.evalWebWorkerBlobUrl}
+        enableFetchProxy={runframeStandaloneProps.enableFetchProxy}
+      />,
+    )
   } else {
     const { fsMap } = await loadScriptsAsFsMap()
     if (fsMap.size > 0) {