diff --git a/src/Conduit/AppM.purs b/src/Conduit/AppM.purs
index ce598e7..f0cf50e 100644
--- a/src/Conduit/AppM.purs
+++ b/src/Conduit/AppM.purs
@@ -17,6 +17,7 @@ import Conduit.Capability.Routing (class MonadRouting)
 import Conduit.Capability.Routing as Routing
 import Conduit.Component.Auth (AuthIO)
 import Conduit.Component.Routing (RoutingIO)
+import Conduit.Config as Config
 import Conduit.Data.Article (Article, ArticleRep, articleCodec, defaultArticlesQuery, mkArticleRepCodec)
 import Conduit.Data.Auth (toAuth)
 import Conduit.Data.Comment (Comment, commentCodec)
@@ -29,13 +30,14 @@ import Control.Monad.Reader (ReaderT, ask, asks, runReaderT)
 import Data.Codec.Argonaut (JsonCodec)
 import Data.Codec.Argonaut as CA
 import Data.Codec.Argonaut.Record as CAR
-import Data.Either (Either)
+import Data.Either (Either, isLeft, fromLeft, hush)
 import Data.Foldable (for_)
 import Data.HTTP.Method (Method(..))
 import Data.Maybe (Maybe(..))
 import Effect.Aff (Aff)
 import Effect.Aff.Class (class MonadAff)
 import Effect.Class (class MonadEffect, liftEffect)
+import Effect.Class.Console as Console
 import Effect.Exception as Exception
 import React.Halo as Halo
 import Record as Record
@@ -102,12 +104,18 @@ instance UserRepository AppM where
   loginUser credentials = do
     (res :: Either Error { user :: CurrentUser }) <- makeRequest POST (StatusCode 200) Endpoint.Login loginBodyCodec userResponseCodec { user: credentials }
     for_ res \{ user: currentUser } -> do
-      Auth.modify $ const $ toAuth currentUser.token (Just $ Record.delete (Proxy :: _ "token") currentUser)
+      let auth = toAuth currentUser.token (Just $ Record.delete (Proxy :: _ "token") currentUser)
+      when (isLeft auth && Config.nodeEnv /= "production") do
+        Console.log $ fromLeft "" auth
+      Auth.modify $ const $ hush auth
     pure $ res <#> _.user
   registerUser user = do
     (res :: Either Error { user :: CurrentUser }) <- makeRequest POST (StatusCode 200) Endpoint.Users registerBodyCodec userResponseCodec { user }
     for_ res \{ user: currentUser } -> do
-      Auth.modify $ const $ toAuth currentUser.token (Just $ Record.delete (Proxy :: _ "token") currentUser)
+      let auth = toAuth currentUser.token (Just $ Record.delete (Proxy :: _ "token") currentUser)
+      when (isLeft auth && Config.nodeEnv /= "production") do
+        Console.log $ fromLeft "" auth
+      Auth.modify $ const $ hush auth
     pure $ res <#> _.user
   updateUser user = do
     (res :: Either Error { user :: CurrentUser }) <- makeSecureRequest PUT (StatusCode 200) Endpoint.User updateUserBodyCodec userResponseCodec { user }
diff --git a/src/Conduit/Component/Auth.purs b/src/Conduit/Component/Auth.purs
index e82188a..bffeb74 100644
--- a/src/Conduit/Component/Auth.purs
+++ b/src/Conduit/Component/Auth.purs
@@ -4,11 +4,12 @@ import Prelude
 import Affjax.StatusCode (StatusCode(..))
 import Conduit.Api.Client (Error, makeSecureRequest')
 import Conduit.Api.Endpoint as Endpoint
+import Conduit.Config as Config
 import Conduit.Data.Auth (Auth, toAuth)
 import Conduit.Data.User (CurrentUser, currentUserCodec)
 import Data.Codec.Argonaut as CA
 import Data.Codec.Argonaut.Record as CAR
-import Data.Either (Either, hush)
+import Data.Either (Either, isLeft, fromLeft, hush)
 import Data.Foldable (for_, traverse_)
 import Data.HTTP.Method (Method(..))
 import Data.Maybe (Maybe(..))
@@ -16,6 +17,7 @@ import Data.Tuple.Nested (type (/\), (/\))
 import Effect (Effect)
 import Effect.Aff (launchAff_)
 import Effect.Class (liftEffect)
+import Effect.Class.Console as Console
 import Effect.Ref as Ref
 import Effect.Timer as Timer
 import Foreign.Day (now)
@@ -71,7 +73,9 @@ mkAuthManager = do
   load = do
     localStorage <- Window.localStorage =<< window
     item <- Storage.getItem "token" localStorage
-    pure $ flip toAuth Nothing =<< item
+    pure $ flip toAuth' Nothing =<< item
+    where
+    toAuth' token user = hush $ toAuth token user
 
   save = case _ of
     Nothing -> do
@@ -92,4 +96,8 @@ mkAuthManager = do
           (res :: Either Error { user :: CurrentUser }) <- makeSecureRequest' token GET (StatusCode 200) Endpoint.User CA.null (CAR.object "UserResponse" { user: currentUserCodec }) unit
           liftEffect case hush $ _.user <$> res of
             Nothing -> void $ modify $ const Nothing
-            Just user -> void $ modify $ const $ toAuth user.token (Just $ Record.delete (Proxy :: Proxy "token") user)
+            Just user -> do
+              let auth' = toAuth user.token (Just $ Record.delete (Proxy :: _ "token") user)
+              when (isLeft auth' && Config.nodeEnv /= "production") do
+                Console.log $ fromLeft "" auth'
+              void $ modify $ const $ hush auth'
diff --git a/src/Conduit/Data/Auth.purs b/src/Conduit/Data/Auth.purs
index 73dd8f3..57ff428 100644
--- a/src/Conduit/Data/Auth.purs
+++ b/src/Conduit/Data/Auth.purs
@@ -4,7 +4,7 @@ import Prelude
 import Conduit.Data.Jwt as Jwt
 import Conduit.Data.User (User)
 import Conduit.Data.Username (Username)
-import Data.Either (hush)
+import Data.Either (Either(..))
 import Data.Maybe (Maybe)
 import Data.Time.Duration (Milliseconds(..))
 import Foreign.Day (DateTime, fromMilliseconds)
@@ -17,7 +17,10 @@ type Auth =
   }
 
 -- | Helpers
-toAuth :: String -> Maybe User -> Maybe Auth
+toAuth :: String -> Maybe User -> Either String Auth
 toAuth token user = do
-  { exp, username } <- hush $ Jwt.decode token
-  pure { token, username, expirationTime: fromMilliseconds $ Milliseconds $ exp * 1000.0, user }
+  let jwt = Jwt.decode token
+  case jwt of
+    Left e -> Left $ show e
+    Right { exp, username } ->
+      pure { token, username, expirationTime: fromMilliseconds $ Milliseconds $ exp * 1000.0, user }
diff --git a/src/Conduit/Data/Jwt.purs b/src/Conduit/Data/Jwt.purs
index aed1f94..16e958d 100644
--- a/src/Conduit/Data/Jwt.purs
+++ b/src/Conduit/Data/Jwt.purs
@@ -24,6 +24,12 @@ data Error
   | JSONParseError String
   | JSONDecodeError CA.JsonDecodeError
 
+instance showError :: Show Error where
+  show (MalformedToken) = "MalformedToken"
+  show (Base64DecodeError e) = "Base64DecodeError: " <> (show e)
+  show (JSONParseError e) = "JSONParseError: " <> e
+  show (JSONDecodeError e) = "JSONDecodeError: " <> (show e)
+
 -- | Helpers
 decode :: String -> Either Error Jwt
 decode =