From c5f568ab1112e6b93fde0fae6ba480ab5a2cb431 Mon Sep 17 00:00:00 2001
From: Harald Nordgren <haraldnordgren@gmail.com>
Date: Mon, 13 Oct 2025 21:02:13 +0200
Subject: [PATCH] fix: force correct server zone option ('US' or 'EU')

---
 src/types/config.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/types/config.ts b/src/types/config.ts
index b66698f..7a60c6d 100644
--- a/src/types/config.ts
+++ b/src/types/config.ts
@@ -63,7 +63,7 @@ export interface ExperimentConfig {
    * automatically sets the {@link serverUrl} and {@link flagsServerUrl}
    * configurations.
    */
-  serverZone?: string;
+  serverZone?: 'US' | 'EU';
 
   /**
    * The request timeout, in milliseconds, when fetching variants.