diff --git a/galicea_openid_connect/controllers/main.py b/galicea_openid_connect/controllers/main.py
index 423cac6..ffd9e1b 100644
--- a/galicea_openid_connect/controllers/main.py
+++ b/galicea_openid_connect/controllers/main.py
@@ -410,3 +410,23 @@ class Main(http.Controller):
             response=None,
             status=302,
         )
+
+
+from odoo.http import Root, HttpRequest
+
+def patch_get_request(f):
+    """
+    Monkey Patching : 
+    escaping classic odoo behavior in a specific situation : 
+    in order to allow /oauth/userinfo GET request to be accepted 
+    with content-type = application/json  
+    """
+    def patched(self, httprequest):
+        if httprequest.path == "/oauth/userinfo" and httprequest.method == "GET":
+            return HttpRequest(httprequest)
+        return f(self, httprequest)
+                                                                                                                                           
+    return patched
+
+
+Root.get_request = patch_get_request(Root.get_request)