diff --git a/addons/test_website/controllers/main.py b/addons/test_website/controllers/main.py
index fad797d6984..259072c81ff 100644
--- a/addons/test_website/controllers/main.py
+++ b/addons/test_website/controllers/main.py
@@ -4,6 +4,7 @@
 from odoo import http
 from odoo.http import request
 from odoo.addons.portal.controllers.web import Home
+import json
 
 
 class WebsiteTest(Home):
@@ -11,3 +12,27 @@ class WebsiteTest(Home):
     @http.route('/test_view', type='http', auth="public", website=True)
     def test_view(self, **kw):
         return request.render('test_website.test_view')
+
+    @http.route('/ignore_args/converteronly/<string:a>/', type='http', auth="public", website=True)
+    def test_ignore_args_converter_only(self, a):
+        return request.make_response(json.dumps(dict(a=a, kw=None)))
+
+    @http.route('/ignore_args/none', type='http', auth="public", website=True)
+    def test_ignore_args_none(self):
+        return request.make_response(json.dumps(dict(a=None, kw=None)))
+
+    @http.route('/ignore_args/a', type='http', auth="public", website=True)
+    def test_ignore_args_a(self, a):
+        return request.make_response(json.dumps(dict(a=a, kw=None)))
+
+    @http.route('/ignore_args/kw', type='http', auth="public", website=True)
+    def test_ignore_args_kw(self, a, **kw):
+        return request.make_response(json.dumps(dict(a=a, kw=kw)))
+
+    @http.route('/ignore_args/converter/<string:a>/', type='http', auth="public", website=True)
+    def test_ignore_args_converter(self, a, b='youhou', **kw):
+        return request.make_response(json.dumps(dict(a=a, b=b, kw=kw)))
+
+    @http.route('/ignore_args/converter/<string:a>/nokw', type='http', auth="public", website=True)
+    def test_ignore_args_converter_nokw(self, a, b='youhou'):
+        return request.make_response(json.dumps(dict(a=a, b=b)))
diff --git a/addons/test_website/tests/__init__.py b/addons/test_website/tests/__init__.py
index 57d8fcd0c25..40d4ece53e7 100644
--- a/addons/test_website/tests/__init__.py
+++ b/addons/test_website/tests/__init__.py
@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from . import test_controller_args
 from . import test_reset_views
 from . import test_views_during_module_operation
diff --git a/addons/test_website/tests/test_controller_args.py b/addons/test_website/tests/test_controller_args.py
new file mode 100644
index 00000000000..4204cb1e5b4
--- /dev/null
+++ b/addons/test_website/tests/test_controller_args.py
@@ -0,0 +1,31 @@
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+import odoo.tests
+
+
+@odoo.tests.common.tagged('post_install', '-at_install')
+class TestWebsiteControllerArgs(odoo.tests.HttpCase):
+
+    def test_crawl_args(self):
+        req = self.url_open('/ignore_args/converter/valueA/?b=valueB&c=valueC')
+        self.assertEquals(req.status_code, 200)
+        self.assertEquals(req.json(), {'a': 'valueA', 'b': 'valueB', 'kw': {'c': 'valueC'}})
+
+        req = self.url_open('/ignore_args/converter/valueA/nokw?b=valueB&c=valueC')
+        self.assertEquals(req.status_code, 200)
+        self.assertEquals(req.json(), {'a': 'valueA', 'b': 'valueB'})
+
+        req = self.url_open('/ignore_args/converteronly/valueA/?b=valueB&c=valueC')
+        self.assertEquals(req.status_code, 200)
+        self.assertEquals(req.json(), {'a': 'valueA', 'kw': None})
+
+        req = self.url_open('/ignore_args/none?a=valueA&b=valueB')
+        self.assertEquals(req.status_code, 200)
+        self.assertEquals(req.json(), {'a': None, 'kw': None})
+
+        req = self.url_open('/ignore_args/a?a=valueA&b=valueB')
+        self.assertEquals(req.status_code, 200)
+        self.assertEquals(req.json(), {'a': 'valueA', 'kw': None})
+
+        req = self.url_open('/ignore_args/kw?a=valueA&b=valueB')
+        self.assertEquals(req.status_code, 200)
+        self.assertEquals(req.json(), {'a': 'valueA', 'kw': {'b': 'valueB'}})
diff --git a/odoo/http.py b/odoo/http.py
index 3f4dd6fad27..d4b1aef8a1a 100644
--- a/odoo/http.py
+++ b/odoo/http.py
@@ -507,8 +507,16 @@ def route(route=None, **kw):
             else:
                 routes = [route]
             routing['routes'] = routes
+
         @functools.wraps(f)
         def response_wrap(*args, **kw):
+            # if controller cannot be called with extra args (utm, debug, ...), call endpoint ignoring them
+            spec = inspect.getargspec(f)
+            if not spec.keywords:
+                ignored = ['<%s=%s>' % (k, kw.pop(k)) for k in list(kw) if k not in spec.args]
+                if ignored:
+                    _logger.info("<function %s.%s> called ignoring args %s" % (f.__module__, f.__name__, ', '.join(ignored)))
+
             response = f(*args, **kw)
             if isinstance(response, Response) or f.routing_type == 'json':
                 return response