From 6c660ec591af0d039a85cb3faa61f97b41723518 Mon Sep 17 00:00:00 2001
From: LongYinan <lynweklm@gmail.com>
Date: Thu, 25 Jul 2024 10:50:50 +0800
Subject: [PATCH] fix(telemetry): proxy logic

---
 packages/telemetry/src/index.ts | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/packages/telemetry/src/index.ts b/packages/telemetry/src/index.ts
index 70581ef..5f7997f 100644
--- a/packages/telemetry/src/index.ts
+++ b/packages/telemetry/src/index.ts
@@ -6,8 +6,21 @@ export default {
       console.log(request.headers.get('Origin'));
       return new Response('Method Not Allowed', { status: 405 });
     }
-    headers.set('Host', 'api-eu.mixpanel.com');
-    const res = await fetch(request, {
+    if (request.method === 'OPTIONS') {
+      return new Response(null, {
+        status: 204,
+        headers: {
+          'Access-Control-Allow-Origin': request.headers.get('Origin') ?? '*',
+          'Access-Control-Allow-Methods': 'POST, OPTIONS',
+          'Access-Control-Allow-Headers': '*',
+        },
+      });
+    }
+    headers.set('Host', 'api-js.mixpanel.com');
+    const url = new URL(request.url);
+    url.host = 'api-js.mixpanel.com';
+    const req = new Request(url, request);
+    const res = await fetch(req, {
       headers,
     });
     return res;