diff --git a/moulinette/interfaces/api.py b/moulinette/interfaces/api.py
index 98a95c1d..38a0f98b 100644
--- a/moulinette/interfaces/api.py
+++ b/moulinette/interfaces/api.py
@@ -362,13 +362,24 @@ class _ActionsMapPlugin(object):
 
         """
         # Retrieve session values
-        s_id = request.get_cookie("session.id") or random_ascii()
+        try:
+            s_id = request.get_cookie("session.id") or random_ascii()
+        except:
+            # Super rare case where there are super weird cookie / cache issue
+            # Previous line throws a CookieError that creates a 500 error ...
+            # So let's catch it and just use a fresh ID then...
+            s_id = random_ascii()
+            
         try:
             s_secret = self.secrets[s_id]
         except KeyError:
             s_tokens = {}
         else:
-            s_tokens = request.get_cookie("session.tokens", secret=s_secret) or {}
+            try:
+                s_tokens = request.get_cookie("session.tokens", secret=s_secret) or {}
+            except:
+                # Same as for session.id a few lines before
+                s_tokens = {}
         s_new_token = random_ascii()
 
         try: