diff --git a/src/main/java/tech/nevets/igformatter/Main.java b/src/main/java/tech/nevets/igformatter/Main.java
index ce0c27f..8d72886 100644
--- a/src/main/java/tech/nevets/igformatter/Main.java
+++ b/src/main/java/tech/nevets/igformatter/Main.java
@@ -19,6 +19,22 @@ public class Main {
             port(8080);
         }
 
+        options("/*",
+            (request, response) -> {
+                String accessControlRequestHeaders = request.headers("Access-Control-Request-Headers");
+                if (accessControlRequestHeaders != null) {
+                    response.header("Access-Control-Allow-Headers", accessControlRequestHeaders);
+                }
+
+                String accessControlRequestMethod = request.headers("Access-Control-Request-Method");
+                if (accessControlRequestMethod != null) {
+                    response.header("Access-Control-Allow-Methods", accessControlRequestMethod);
+                }
+
+                return "OK";
+            }
+        );
+        
         post("/igformatter/upload", new GenerateRoute());
 
         Timer timer = new Timer(true);