source

2021-02-05 01:47:19 +02:00 · 2021-02-05 01:47:19 +02:00 · 8999461940
commit 8999461940
parent c33c634346
1 changed files with 2 additions and 1 deletions
--- a/src/index.ts
+++ b/src/index.ts
@ -24,7 +24,8 @@ const io = socketIO(server, {
  handlePreflightRequest: function (req, res) {
    const headers = {
      "Access-Control-Allow-Headers": "Content-Type, Authorization",
-      "Access-Control-Allow-Origin": "*",
+      "Access-Control-Allow-Origin":
+        (req.header && req.header.origin) || "https://excalidraw.com",
      "Access-Control-Allow-Credentials": true,
    };
    res.writeHead(200, headers);