diff --git a/docs/source/config.rst b/docs/source/config.rst
index fc83ef137..b68268fa1 100644
--- a/docs/source/config.rst
+++ b/docs/source/config.rst
@@ -25,8 +25,8 @@ Server Configuration
 ~~~~~~~~~~~~~~~~~~
 - ``DAGU_HOST`` (``127.0.0.1``): Server binding host
 - ``DAGU_PORT`` (``8080``): Server binding port
-- ``DAGU_BASE_PATH`` (``""``): Base path to serve the application
-- ``DAGU_TZ`` (``""``): Server timezone (default: system timezone)
+- ``DAGU_BASE_PATH`` (``""``): Base path to serve the application (e.g., ``/dagu``)
+- ``DAGU_TZ`` (``""``): Server timezone (default: system timezone, e.g., ``Asia/Tokyo``)
 - ``DAGU_CERT_FILE``: SSL certificate file path
 - ``DAGU_KEY_FILE``: SSL key file path
 
diff --git a/docs/source/scheduler.rst b/docs/source/scheduler.rst
index b1f6710be..0a5976d3e 100644
--- a/docs/source/scheduler.rst
+++ b/docs/source/scheduler.rst
@@ -28,7 +28,7 @@ Or you can set multiple schedules.
       - name: scheduled job
         command: job.sh
 
-You can also specify a cron expression to run within a specific timezone. See `list of tz database timezones <https://en.wikipedia.org/wiki/List_of_tz_database_time_zones>`
+You can also specify a cron expression to run within a specific timezone. See `list of tz database timezones <https://en.wikipedia.org/wiki/List_of_tz_database_time_zones>`_
 
 .. code-block:: yaml
 
diff --git a/internal/frontend/middleware/global.go b/internal/frontend/middleware/global.go
index dc4df0fb8..e7d215851 100644
--- a/internal/frontend/middleware/global.go
+++ b/internal/frontend/middleware/global.go
@@ -101,19 +101,25 @@ func Setup(opts *Options) {
 }
 
 func prefixChecker(next http.Handler) http.Handler {
+	handleRequest := func(w http.ResponseWriter, r *http.Request) {
+		if strings.HasPrefix(r.URL.Path, "/api") {
+			next.ServeHTTP(w, r)
+		} else {
+			defaultHandler.ServeHTTP(w, r)
+		}
+	}
 	return http.HandlerFunc(
 		func(w http.ResponseWriter, r *http.Request) {
+			if basePath == "" || !strings.HasPrefix(r.URL.Path, basePath) {
+				handleRequest(w, r)
+				return
+			}
 			if basePath != "" && r.URL.Path == "/" {
 				http.Redirect(w, r, basePath, http.StatusSeeOther)
 				return
 			}
-
 			http.StripPrefix(basePath, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-				if strings.HasPrefix(r.URL.Path, "/api") {
-					next.ServeHTTP(w, r)
-				} else {
-					defaultHandler.ServeHTTP(w, r)
-				}
+				handleRequest(w, r)
 			})).ServeHTTP(w, r)
 		})
 }