diff --git a/pageScript.js b/pageScript.js
index 040ffb2..b073f72 100644
--- a/pageScript.js
+++ b/pageScript.js
@@ -1,7 +1,37 @@
+const body = document.getElementsByTagName('body')[0];
+let odooVersion = 'legacy';
+let debugMode = '';
+
+const autoEnableDevMode = (function(){
+    let isEnable = false;
+    return function (){
+        isEnable = true;
+        if(!isEnable){
+            const url = window.location.href;
+            const regex = /localhost/i;
+            const regex2 = /127.0.0.1/i;
+            if(body.getAttribute('o_web_client') && (url.search(regex) || url.search(regex2))){
+                if(window.hasOwnProperty('odoo') && odoo && odoo.hasOwnProperty('debug')){
+                    if(odoo.debug === '0'){
+                        debugMode = '1';
+                    }
+                debugMode = debugMode === '0' ? '' : debugMode;
+                body.setAttribute('data-odoo', odooVersion);
+                body.setAttribute('data-odoo-debug-mode', debugMode);
+                }
+            }
+            else{
+                debugMode = '0';
+                debugMode = debugMode === '0' ? '' : debugMode;
+                body.setAttribute('data-odoo', odooVersion);
+                body.setAttribute('data-odoo-debug-mode', debugMode);
+            }
+        }
+    }
+})();
+autoEnableDevMode();
+
 if (window.hasOwnProperty('odoo') && odoo && odoo.hasOwnProperty('debug')) {
-    let odooVersion = 'legacy';
-    let debugMode = '';
-    const body = document.getElementsByTagName('body')[0];
     if (typeof odoo.debug === 'boolean') {
         const url = window.location.href;
         if (url.search(/[&|?]debug=assets/) !== -1) {