diff --git a/src/server.ts b/src/server.ts
index 997ae15..72d1ce0 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -15,6 +15,14 @@ const generateId = () => nanoid(32);
 const clients: Record<string, http.ServerResponse> = {};
 
 const server = http.createServer((req, res) => {
+  if (req.method === 'OPTIONS') {
+    res.writeHead(200, {
+      'Acess-Control-Allow-Methods': '*',
+      'Acess-Control-Allow-Headers': '*',
+      'Access-Control-Allow-Origin': process.env.ALLOW_ORIGIN || '*',
+    });
+    return;
+  }
   switch (req.url) {
     case '/run':
       const jobId = generateId();