diff --git a/public/js/annotation.js b/public/js/annotation.js
index cd2c944..ac67149 100644
--- a/public/js/annotation.js
+++ b/public/js/annotation.js
@@ -2,6 +2,7 @@ import * as THREE from "./lib/three.module.js";
 import { globalObjectCategory } from "./obj_cfg.js";
 import { saveWorldList } from "./save.js";
 import { intersect } from "./util.js";
+import request from "./request.js";
 
 function Annotation(sceneMeta, world, frameInfo) {
   this.world = world;
@@ -514,7 +515,7 @@ function Annotation(sceneMeta, world, frameInfo) {
 
       xhr.open(
         "GET",
-        "/load_annotation" +
+        request + "/load_annotation" +
           "?scene=" +
           this.frameInfo.scene +
           "&frame=" +
diff --git a/public/js/auto_annotate.js b/public/js/auto_annotate.js
index a8cc208..e3ff5ea 100644
--- a/public/js/auto_annotate.js
+++ b/public/js/auto_annotate.js
@@ -1,4 +1,5 @@
 import { globalObjectCategory } from "./obj_cfg.js";
+import request from "./request.js";
 
 function autoAnnotate(world, done, alg) {
   var xhr = new XMLHttpRequest();
@@ -25,7 +26,7 @@ function autoAnnotate(world, done, alg) {
 
   xhr.open(
     "GET",
-    "/auto_annotate?" +
+    request + "/auto_annotate?" +
       "scene=" +
       world.frameInfo.scene +
       "&frame=" +
diff --git a/public/js/crop_scene.js b/public/js/crop_scene.js
index 6b3d737..b86ac19 100644
--- a/public/js/crop_scene.js
+++ b/public/js/crop_scene.js
@@ -1,4 +1,5 @@
 import { PopupDialog } from "./popup_dialog.js";
+import request from "./request.js";
 
 class CropScene extends PopupDialog {
   constructor(ui, editor) {
@@ -27,7 +28,7 @@ class CropScene extends PopupDialog {
         }
       };
 
-      xhr.open("POST", "/cropscene", true);
+      xhr.open("POST", request + "/cropscene", true);
 
       let para = {
         rawSceneId: this.editor.data.world.frameInfo.scene,
diff --git a/public/js/data.js b/public/js/data.js
index aefedea..f7cc7ff 100644
--- a/public/js/data.js
+++ b/public/js/data.js
@@ -1,6 +1,7 @@
 import { World } from "./world.js";
 import { Debug } from "./debug.js";
 import { logger } from "./log.js";
+import request from "./request.js";
 
 // 请求数据集合
 class Data {
@@ -428,7 +429,7 @@ class Data {
         }
       };
 
-      xhr.open("GET", `/scenemeta?scene=${sceneName}`, true);
+      xhr.open("GET", `${request}/scenemeta?scene=${sceneName}`, true);
       xhr.send();
     });
   }
diff --git a/public/js/ego_pose.js b/public/js/ego_pose.js
index a12f953..d95281e 100644
--- a/public/js/ego_pose.js
+++ b/public/js/ego_pose.js
@@ -1,3 +1,4 @@
+import request from "./request.js";
 class EgoPose {
   constructor(sceneMeta, world, frameInfo) {
     this.world = world;
@@ -37,7 +38,7 @@ class EgoPose {
 
     xhr.open(
       "GET",
-      "/load_ego_pose" +
+      request + "/load_ego_pose" +
         "?scene=" +
         this.world.frameInfo.scene +
         "&frame=" +
diff --git a/public/js/lib/ml/lalolib.js b/public/js/lib/ml/lalolib.js
index a392383..8a4fcc0 100644
--- a/public/js/lib/ml/lalolib.js
+++ b/public/js/lib/ml/lalolib.js
@@ -1,3 +1,4 @@
+import request from "../../request.js";
 /////////////////////////////////////
 /// Stand alone lalolib base functions
 ////////////////////////////////////
@@ -1404,7 +1405,7 @@ Lalolab.prototype.import = function ( script, callback ) {
 function importLaloScript ( script ) {
 	// load a script in lalolib language in the current Lab worker
 	var xhr = new XMLHttpRequest();
-	xhr.open('GET', script, false);
+	xhr.open('GET', request + script, false);
 	xhr.send();
 	var cmd = xhr.responseText;
  	return lalo(cmd); 
diff --git a/public/js/lib/ml/ml.js b/public/js/lib/ml/ml.js
index 215d0a7..98a6567 100644
--- a/public/js/lib/ml/ml.js
+++ b/public/js/lib/ml/ml.js
@@ -1,3 +1,4 @@
+import request from "../../request.js";
 /////////////////////////////////////
 /// Stand alone lalolib base functions
 ////////////////////////////////////
@@ -1404,7 +1405,7 @@ Lalolab.prototype.import = function ( script, callback ) {
 function importLaloScript ( script ) {
 	// load a script in lalolib language in the current Lab worker
 	var xhr = new XMLHttpRequest();
-	xhr.open('GET', script, false);
+	xhr.open('GET', request + script, false);
 	xhr.send();
 	var cmd = xhr.responseText;
  	return lalo(cmd); 
@@ -26392,7 +26393,7 @@ function loadmodel ( url, format ) {
 	
 	// load a remote file (from same web server only...)
 	var xhr = new XMLHttpRequest();
-	xhr.open('GET', url, false); // false = synchronous
+	xhr.open('GET', request + url, false); // false = synchronous
 	xhr.responseType = 'blob';
 	xhr.send(null);
 	
@@ -26418,7 +26419,7 @@ function loaddata ( url, format ) {
 	
 	// load a remote file (from same web server only...)
 	var xhr = new XMLHttpRequest();
-	xhr.open('GET', url, false); // false = synchronous
+	xhr.open('GET', request + url, false); // false = synchronous
 	xhr.responseType = 'blob';
 	xhr.send(null);
 	
diff --git a/public/js/obj_id_list.js b/public/js/obj_id_list.js
index 079dcea..5e17c1f 100644
--- a/public/js/obj_id_list.js
+++ b/public/js/obj_id_list.js
@@ -1,4 +1,5 @@
 import { categoryZh } from "./obj_cfg.js";
+import request from "./request.js";
 
 class ObjectIdManager {
   maxId = 1;
@@ -107,7 +108,7 @@ class ObjectIdManager {
       }
     };
 
-    xhr.open("GET", "/objs_of_scene?scene=" + scene, true);
+    xhr.open("GET", request + "/objs_of_scene?scene=" + scene, true);
     xhr.send();
   }
 
diff --git a/public/js/request.js b/public/js/request.js
new file mode 100644
index 0000000..d605ce3
--- /dev/null
+++ b/public/js/request.js
@@ -0,0 +1,2 @@
+const request = location.host.indexOf('localhost')!=-1 ? '' : '/3Dpoints'
+export default request
\ No newline at end of file
diff --git a/public/js/save.js b/public/js/save.js
index d063965..ca03855 100644
--- a/public/js/save.js
+++ b/public/js/save.js
@@ -1,6 +1,7 @@
 import { Editor } from "./editor.js";
 import { checkScene } from "./error_check.js";
 import { logger } from "./log.js";
+import request from "./request.js";
 
 function reloadWorldList(worldList, done) {
   var xhr = new XMLHttpRequest();
@@ -27,7 +28,7 @@ function reloadWorldList(worldList, done) {
     }
   };
 
-  xhr.open("POST", "/loadworldlist", true);
+  xhr.open("POST", request + "/loadworldlist", true);
 
   let para = worldList.map((w) => {
     return {
@@ -95,7 +96,7 @@ function doSaveWorldList(worldList, done) {
   });
 
   var xhr = new XMLHttpRequest();
-  xhr.open("POST", "/saveworldlist", true);
+  xhr.open("POST", request + "/saveworldlist", true);
   xhr.setRequestHeader("Content-Type", "application/json");
 
   xhr.onreadystatechange = function () {