diff --git a/handlers.go b/handlers.go
index 37057c1..1fd85b5 100644
--- a/handlers.go
+++ b/handlers.go
@@ -102,6 +102,8 @@ func callbackHandler(c *gin.Context) {
 
 	if userFunc != nil {
 		userFunc(claims.Uid, claims.Name, claims.Email)
+	} else {
+		log.Println("[JHID] WARNING: No user function defined")
 	}
 
 	// Clear session data of oauth related state
diff --git a/public/autherror.tmpl b/public/autherror.tmpl
index 512da7b..91ff01b 100644
--- a/public/autherror.tmpl
+++ b/public/autherror.tmpl
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
 <html>
     <head>
         <!-- NOTE: You should definitely host this yourself! (and you can adjust the style that way, too!) -->
diff --git a/public/oidcerror.tmpl b/public/oidcerror.tmpl
index 55d87ef..7675d6c 100644
--- a/public/oidcerror.tmpl
+++ b/public/oidcerror.tmpl
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
 <html>
     <head>
         <!-- NOTE: You should definitely host this yourself! (and you can adjust the style that way, too!) -->
diff --git a/stubs.go b/stubs.go
index 675ab3d..98184e1 100644
--- a/stubs.go
+++ b/stubs.go
@@ -1,6 +1,8 @@
 package oidclogin
 
 import (
+	"log"
+
 	"github.com/gin-contrib/sessions"
 	"github.com/gin-gonic/gin"
 )
@@ -15,13 +17,19 @@ func startStubs(r *gin.Engine) {
 func stubsHandler(c *gin.Context) {
 	redir := c.Query("returnTo")
 	session := sessions.Default(c)
-	userFunc("stubs", "Stubs User", "example@example.com")
+	if userFunc != nil {
+		userFunc("stubs", "Stubs User", "example@example.com")
+	} else {
+		log.Println("[JHID] WARNING: No user function defined")
+	}
 	session.Set("jhid_auth", true)
 	session.Set("jhid_uid", "stubs")
 	session.Save()
 	if redir != "" {
+		log.Println("[JHID] Redirecting to ", redir)
 		c.Redirect(307, redir)
 	} else {
+		log.Println("[JHID] Redirecting to ", defaultRedirect, " (default redirect)")
 		c.Redirect(307, defaultRedirect)
 	}
 }