refactor: allow root domain app urls for testing

Author: steveiliop56

Makefile

@@ -13,6 +13,8 @@ BIN_NAME := tinyauth-$(GOARCH)
 DEV_COMPOSE := $(shell test -f "docker-compose.test.yml" && echo "docker-compose.test.yml" || echo "docker-compose.dev.yml" )
 PROD_COMPOSE := $(shell test -f "docker-compose.test.prod.yml" && echo "docker-compose.test.prod.yml" || echo "docker-compose.example.yml" )
 
+.DEFAULT_GOAL := binary
+
 # Deps
 deps:
 	bun install --cwd frontend

internal/utils/app_utils.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/steveiliop56/tinyauth/internal/config"
+	"github.com/steveiliop56/tinyauth/internal/utils/tlog"
 
 	"github.com/gin-gonic/gin"
 	"github.com/weppos/publicsuffix-go/publicsuffix"
@@ -28,6 +29,11 @@ func GetCookieDomain(u string) (string, error) {
 
 	parts := strings.Split(host, ".")
 
+	if len(parts) == 2 {
+		tlog.App.Warn().Msgf("Running on the root domain, cookies will be set for .%v", host)
+		return host, nil
+	}
+
 	if len(parts) < 3 {
 		return "", errors.New("invalid app url, must be at least second level domain")
 	}