diff --git a/src/main/webapp/html/method_editor.jsp b/src/main/webapp/html/method_editor.jsp
index 57efdca..cbf3dfb 100644
--- a/src/main/webapp/html/method_editor.jsp
+++ b/src/main/webapp/html/method_editor.jsp
@@ -3,6 +3,7 @@
 <%@ include file="./init.jsp"%>
 
 <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet" />
+<script src="https://cdn.jsdelivr.net/npm/ol@v9.2.4/dist/ol.js"></script>
 <script src="${cdn_url}/ccp/js/inputwidgetcontroller.js"></script>
 <script src="${cdn_url}/storage/d4s-storage.js"></script>
 <div>
diff --git a/src/main/webapp/html/method_executor.jsp b/src/main/webapp/html/method_executor.jsp
index ba3f714..ef33fb1 100644
--- a/src/main/webapp/html/method_executor.jsp
+++ b/src/main/webapp/html/method_executor.jsp
@@ -6,6 +6,7 @@
 <div>
     <d4s-ccp-executionform serviceurl="${ccp_url}">
         <script src="${cdn_url}/storage/d4s-storage.js"></script>
+        <script src="https://cdn.jsdelivr.net/npm/ol@v9.2.4/dist/ol.js"></script>
         <script src="${cdn_url}/ccp/js/inputwidgetcontroller.js"></script>
         <script src="${cdn_url}/ccp/js/outputwidgetcontroller.js"></script>
         <script src="${cdn_url}/ccp/js/executionformcontroller.js"></script>