added logging

handlers/redirect.go

@@ -1,6 +1,7 @@
 package handlers
 
 import (
+	"log"
 	"os"
 	"strings"
 )
@@ -13,9 +14,10 @@ func IsAllowedRedirectURI(uri string) bool {
 
 	allowedRedirectURIs := strings.Split(allowedRedirectURIsEnv, ",")
 	for _, allowed := range allowedRedirectURIs {
-		if uri == strings.TrimSpace(allowed) { // Exact match only
+		if uri == strings.TrimSpace(allowed) {
 			return true
 		}
 	}
+	log.Print("Redirect URI not allowed: ", uri)
 	return false
 }