diff --git a/apps/as/public/webhwpctrl/hwpsdkmain.html b/apps/as/public/webhwpctrl/hwpsdkmain.html
index d526c5f84..3f4bc1526 100644
--- a/apps/as/public/webhwpctrl/hwpsdkmain.html
+++ b/apps/as/public/webhwpctrl/hwpsdkmain.html
@@ -14,15 +14,15 @@
       type="text/javascript"
       data-type="css/app"
       data-framework="aori|lab"
-      src="https://hwp.onasys.co.kr/webhwpctrl/js/loadVersion.js"
+      src="js/loadVersion.js"
     ></script>
     <script
       type="text/javascript"
       data-type="css/app"
       data-framework="aori|lab"
-      src="https://hwp.onasys.co.kr/webhwpctrl/js/loadHead.js"
+      src="js/loadHead.js"
     ></script>
-    <script data-main="js/main" data-bundle="dist/main_bundle" src="https://hwp.onasys.co.kr/webhwpctrl/js/loadMain.js"></script>
+    <script data-main="js/main" data-bundle="dist/main_bundle" src="js/loadMain.js"></script>
     <style>
       #hcwoViewScroll::-webkit-scrollbar {
         height: 10px;
@@ -57,6 +57,6 @@
     </div>
 
     <iframe id="download_iframe" style="width: 0px; height: 0px; border: 0; display: none"></iframe>
-    <script type="text/javascript" src="https://hwp.onasys.co.kr/webhwpctrl/hwpsdk/loadHwpsdk.js"></script>
+    <script type="text/javascript" src="hwpsdk/loadHwpsdk.js"></script>
   </body>
 </html>
diff --git a/apps/as/public/webhwpctrl/index.html b/apps/as/public/webhwpctrl/index.html
index 55a0e6bac..918ea80b6 100644
--- a/apps/as/public/webhwpctrl/index.html
+++ b/apps/as/public/webhwpctrl/index.html
@@ -5,18 +5,6 @@
     <meta http-equiv="X-UA-Compatible" content="IE=Edge" />
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <title>웹한글 기안기 브리지</title>
-    <script
-      type="text/javascript"
-      src="https://hwp.onasys.co.kr/webhwpctrl/js/hwpctrlapp/utils/util.js"
-    ></script>
-    <script
-      type="text/javascript"
-      src="https://hwp.onasys.co.kr/webhwpctrl/js/hwpctrlapp/hwpCtrlApp.js"
-    ></script>
-    <script
-      type="text/javascript"
-      src="https://hwp.onasys.co.kr/webhwpctrl/js/webhwpctrl.js"
-    ></script>
     <style>
       html,
       body,
@@ -39,27 +27,56 @@
     <div id="hwpctrl"></div>
     <script type="text/javascript">
       (function () {
+        // baseurl: 부모(HangulGiangi)가 NEXT_PUBLIC_WEBHYP_CTRL_URL 값으로 전달.
+        // 없으면 same-origin 프록시 경로(/webhwpctrl/ → next.config rewrites)를 사용한다.
         var params = new URLSearchParams(window.location.search);
-        var baseUrl = params.get("baseurl") || "https://hwp.onasys.co.kr/webhwpctrl";
+        var baseUrl = params.get("baseurl") || new URL("./", window.location.href).href;
         if (baseUrl.charAt(baseUrl.length - 1) !== "/") {
           baseUrl += "/";
         }
 
-        var HwpCtrl = BuildWebHwpCtrl(
-          "hwpctrl",
-          baseUrl,
-          function () {
-            try {
-              window.parent.postMessage({ type: "hangulgiangi-ready" }, "*");
-            } catch (e) {
-              console.warn(e);
-            }
-          },
-          2,
-        );
+        var scripts = [
+          "js/hwpctrlapp/utils/util.js",
+          "js/hwpctrlapp/hwpCtrlApp.js",
+          "js/webhwpctrl.js",
+        ];
 
-        // 부모(HangulGiangi)가 contentWindow.HwpCtrl 로 접근
-        window.HwpCtrl = HwpCtrl;
+        function loadScript(index) {
+          if (index >= scripts.length) {
+            init();
+            return;
+          }
+          var script = document.createElement("script");
+          script.type = "text/javascript";
+          script.src = baseUrl + scripts[index];
+          script.onload = function () {
+            loadScript(index + 1);
+          };
+          script.onerror = function () {
+            console.error("웹한글 기안기 스크립트 로드 실패: " + script.src);
+          };
+          document.head.appendChild(script);
+        }
+
+        function init() {
+          var HwpCtrl = BuildWebHwpCtrl(
+            "hwpctrl",
+            baseUrl,
+            function () {
+              try {
+                window.parent.postMessage({ type: "hangulgiangi-ready" }, "*");
+              } catch (e) {
+                console.warn(e);
+              }
+            },
+            2,
+          );
+
+          // 부모(HangulGiangi)가 contentWindow.HwpCtrl 로 접근
+          window.HwpCtrl = HwpCtrl;
+        }
+
+        loadScript(0);
       })();
     </script>
   </body>