diff --git a/src/api.js b/src/api.js
index 8cca773..ccda8be 100644
--- a/src/api.js
+++ b/src/api.js
@@ -1,25 +1,7 @@
 // src/api.js
-const API_BASE = import.meta.env.VITE_API_BASE || "";
-
-const toApiUrl = (path) => {
-  if (!API_BASE) return path;
-
-  try {
-    const base = new URL(API_BASE, window.location.origin);
-    // Ensure base pathname ends with '/' if it's not the root or if likely intended as a directory
-    if (!base.pathname.endsWith('/')) {
-      base.pathname += '/';
-    }
-
-    // Remove leading slash from path to avoid double slashes when joining
-    const cleanPath = path.startsWith('/') ? path.slice(1) : path;
-
-    return new URL(cleanPath, base).toString();
-  } catch (error) {
-    console.error("Invalid VITE_API_BASE configuration:", error);
-    return path;
-  }
-};
+// 프론트와 API가 동일 도메인(nginx 프록시)이므로 항상 상대 경로 사용.
+// 절대 URL(VITE_API_BASE)은 Mixed Content를 유발하므로 사용하지 않음.
+const toApiUrl = (path) => path;
 
 export async function apiGet(path) {
   const res = await fetch(toApiUrl(path), {