From ee438b636b54af71f57da1ddbeff6e8501c9ad72 Mon Sep 17 00:00:00 2001
From: EdamAmex <121654029+EdamAme-x@users.noreply.github.com>
Date: Thu, 17 Oct 2024 10:14:48 +0000
Subject: [PATCH] fix(child_process): ignore node experimental option
 --experimental-*

---
 ext/node/polyfills/child_process.ts          |  2 ++
 ext/node/polyfills/internal/child_process.ts |  2 ++
 tests/unit_node/child_process_test.ts        | 16 ++++++++++++++++
 3 files changed, 20 insertions(+)

diff --git a/ext/node/polyfills/child_process.ts b/ext/node/polyfills/child_process.ts
index eda718ff34..041a7b6c54 100644
--- a/ext/node/polyfills/child_process.ts
+++ b/ext/node/polyfills/child_process.ts
@@ -134,6 +134,8 @@ export function fork(
         execArgv.splice(index, rm);
       } else if (flag.startsWith("--no-warnings")) {
         execArgv[index] = "--quiet";
+      } else if (flag.startsWith("--experimental")) {
+        // Do Nothing
       } else {
         index++;
       }
diff --git a/ext/node/polyfills/internal/child_process.ts b/ext/node/polyfills/internal/child_process.ts
index 65d825fd25..2749e22964 100644
--- a/ext/node/polyfills/internal/child_process.ts
+++ b/ext/node/polyfills/internal/child_process.ts
@@ -1193,6 +1193,8 @@ function toDenoArgs(args: string[]): string[] {
     if (flagInfo === undefined) {
       if (arg === "--no-warnings") {
         denoArgs.push("--quiet");
+      } else if (arg.startsWith("--experimental")) {
+        // Do Nothing
       } else {
         // Not a known flag that expects a value. Just copy it to the output.
         denoArgs.push(arg);
diff --git a/tests/unit_node/child_process_test.ts b/tests/unit_node/child_process_test.ts
index 0ea3c46cf0..0ebc4e27dd 100644
--- a/tests/unit_node/child_process_test.ts
+++ b/tests/unit_node/child_process_test.ts
@@ -1061,3 +1061,19 @@ Deno.test(async function noWarningsFlag() {
 
   await timeout.promise;
 });
+
+Deno.test(async function experimentalFlag() {
+  const code = ``;
+  const file = await Deno.makeTempFile();
+  await Deno.writeTextFile(file, code);
+  const timeout = withTimeout<void>();
+  const child = CP.fork(file, [], {
+    execArgv: ["--experimental-vm-modules"],
+    stdio: ["inherit", "inherit", "inherit", "ipc"],
+  });
+  child.on("close", () => {
+    timeout.resolve();
+  });
+
+  await timeout.promise;
+});