diff --git a/src/main/java/com/example/globalTimes_be/domain/trend/service/TrendAiService.java b/src/main/java/com/example/globalTimes_be/domain/trend/service/TrendAiService.java
index e04b59c..0fff0ac 100644
--- a/src/main/java/com/example/globalTimes_be/domain/trend/service/TrendAiService.java
+++ b/src/main/java/com/example/globalTimes_be/domain/trend/service/TrendAiService.java
@@ -27,6 +27,10 @@ public String summarizeTrendArticle (String content, String language) {
 
     // OpenAI 요청 본문 생성 (기사 요약)
     private Map<String, Object> createRequestBody(String content, String language) {
+        if (content == null || language == null) {
+            throw new IllegalArgumentException("content나 language는 null일 수 없습니다.");
+        }
+
         return Map.of(
                 "model", "gpt-4o-mini",
                 "messages", List.of(
diff --git a/src/main/java/com/example/globalTimes_be/global/config/CorsMvcConfig.java b/src/main/java/com/example/globalTimes_be/global/config/CorsMvcConfig.java
index 4a100b1..64697bc 100644
--- a/src/main/java/com/example/globalTimes_be/global/config/CorsMvcConfig.java
+++ b/src/main/java/com/example/globalTimes_be/global/config/CorsMvcConfig.java
@@ -13,7 +13,8 @@ public void addCorsMappings(CorsRegistry corsRegistry) {
                 .allowedOrigins(
                         "https://global-times.netlify.app",
                         "https://globaltimes.store",
-                        "https://www.globaltimes.store"
+                        "https://www.globaltimes.store",
+                        "http://localhost:5173"
                 )
                 .allowCredentials(true);
     }