diff --git a/addons/stock/static/tests/tours/route.js b/addons/stock/static/tests/tours/route.js
index 4647f41a36f..9c29d3f6ada 100644
--- a/addons/stock/static/tests/tours/route.js
+++ b/addons/stock/static/tests/tours/route.js
@@ -5,7 +5,7 @@ var tour = require('web_tour.tour');
 
 tour.register('stock', {
     test: true,
-    url: '/web#action=stock.action_stock_config_settings',
+    url: '/web?debug=1#action=stock.action_stock_config_settings',
     },
      [
         {
diff --git a/addons/web/views/webclient_templates.xml b/addons/web/views/webclient_templates.xml
index 5bc34aad93f..aa3f67af07d 100644
--- a/addons/web/views/webclient_templates.xml
+++ b/addons/web/views/webclient_templates.xml
@@ -394,7 +394,7 @@
     </template>
 
     <template id="conditional_assets_tests" name="Tests Assets Bundle">
-        <t t-call-assets="web.assets_tests" t-if="'tests' in debug" defer_load="True" />
+        <t t-call-assets="web.assets_tests" t-if="'tests' in debug or test_mode_enabled" defer_load="True" />
     </template>
 
     <template id="web.layout" name="Web layout">&lt;!DOCTYPE html&gt;
diff --git a/odoo/addons/base/models/ir_ui_view.py b/odoo/addons/base/models/ir_ui_view.py
index 30600ee6bf7..5ee3d98b8aa 100644
--- a/odoo/addons/base/models/ir_ui_view.py
+++ b/odoo/addons/base/models/ir_ui_view.py
@@ -1357,6 +1357,7 @@ actual arch.
             keep_query=keep_query,
             request=request,  # might be unbound if we're not in an httprequest context
             debug=request.session.debug if request else '',
+            test_mode_enabled=bool(config['test_enable'] or config['test_file']),
             json=json,
             quote_plus=werkzeug.url_quote_plus,
             time=time,
diff --git a/odoo/addons/test_new_api/static/tests/tours/x2many.js b/odoo/addons/test_new_api/static/tests/tours/x2many.js
index ae4c0e3c8d3..f1683d09c69 100644
--- a/odoo/addons/test_new_api/static/tests/tours/x2many.js
+++ b/odoo/addons/test_new_api/static/tests/tours/x2many.js
@@ -5,7 +5,7 @@ odoo.define('web.test.x2many', function (require) {
     var inc;
 
     tour.register('widget_x2many', {
-        url: '/web#action=test_new_api.action_discussions',
+        url: '/web?debug=1#action=test_new_api.action_discussions',
         test: true,
     }, [
     /////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/odoo/http.py b/odoo/http.py
index d4b1aef8a1a..34af5c78c53 100644
--- a/odoo/http.py
+++ b/odoo/http.py
@@ -1051,9 +1051,7 @@ class OpenERPSession(werkzeug.contrib.sessions.Session):
         self.setdefault("login", None)
         self.setdefault("session_token", None)
         self.setdefault("context", {})
-        # Force tests debug mode when test mode enabled to load 'assets_tests'
-        test_mode = odoo.tools.config['test_enable'] or odoo.tools.config['test_file']
-        self.setdefault("debug", 'tests' if test_mode else '')
+        self.setdefault("debug", '')
 
     def get_context(self):
         """