diff --git a/source/Funbit.Ets.Telemetry.Server/Controllers/Ets2TelemetryController.cs b/source/Funbit.Ets.Telemetry.Server/Controllers/Ets2TelemetryController.cs
index b4ec3fd3..afcd8cb5 100644
--- a/source/Funbit.Ets.Telemetry.Server/Controllers/Ets2TelemetryController.cs
+++ b/source/Funbit.Ets.Telemetry.Server/Controllers/Ets2TelemetryController.cs
@@ -47,7 +47,8 @@ public HttpResponseMessage Get()
             var telemetryJson = GetEts2TelemetryJson();
             var response = Request.CreateResponse(HttpStatusCode.OK);
             response.Content = new StringContent(telemetryJson, Encoding.UTF8, "application/json");
-            response.Headers.CacheControl = new CacheControlHeaderValue { NoCache = true };    
+            response.Headers.CacheControl = new CacheControlHeaderValue { NoCache = true };
+            response.Headers.Add("Access-Control-Allow-Origin", "*");
             return response;
         }
     }