diff --git a/js/onlineide/leftmenu.js b/js/onlineide/leftmenu.js
index f3c766f..40f1541 100644
--- a/js/onlineide/leftmenu.js
+++ b/js/onlineide/leftmenu.js
@@ -721,13 +721,21 @@ var cancelUpload = function () {
 }
 var downloadContract = function (projectName) {
     // console.log(window.location.href);
-    var url;
-    if (window.location.href.indexOf("/SCIDE") != -1)
-        url = window.location.href.replace("/OnlineIDE.html", "/CMManager?");
-    else
-        url = window.location.href.replace("/OnlineIDE.html",
-            "/SCIDE/CMManager?");
-
+    let url;
+    if (global.urlparam) {
+        if (location.href.startsWith("https")) {
+            url = "https://";
+        } else {
+            url = "http://";
+        }
+        url += `${global.urlparam.nodeAddr}/SCIDE/CMManager?`;
+    } else {
+        if (window.location.href.indexOf("/SCIDE") != -1)
+            url = window.location.href.replace("/OnlineIDE.html", "/CMManager?");
+        else
+            url = window.location.href.replace("/OnlineIDE.html",
+                "/SCIDE/CMManager?");
+    }
     var arg = "action=downloadContract&projectName="
     arg += projectName;
     var isPrivate = $("#privateprojecttab").hasClass("active");