diff --git a/src/cli/presence-server.ts b/src/cli/presence-server.ts
index 07e1065..cc25d17 100644
--- a/src/cli/presence-server.ts
+++ b/src/cli/presence-server.ts
@@ -337,6 +337,8 @@ class Server extends HttpServer {
                 '>; rel="alternate"; type="text/event-stream"');
         }
 
+        res?.setHeader('Access-Control-Allow-Origin', '*');
+
         const include_splatnet3 = this.splatnet3_users && req.query['include-splatoon3'] === '1';
 
         let match_coral: Friend | null = null;
@@ -502,6 +504,8 @@ class Server extends HttpServer {
         res.setHeader('Link', '<' + encodeURI(presence_url.pathname + req_url.search) +
             '>; rel="alternate"; type="application/json"');
 
+        res.setHeader('Access-Control-Allow-Origin', '*');
+
         const result = await this.handlePresenceRequest(req, null, presence_user_nsaid, true);
 
         const stream = new EventStreamResponse(req, res);