Merge pull request #11 from SlyngDK/frontend

Fixed handling of not found for frontend routing

webapp/webapp.go

@@ -7,6 +7,9 @@ import (
 	"embed"
 	"io/fs"
 	"net/http"
+	"os"
+	"path"
+	"strings"
 
 	"github.com/sirupsen/logrus"
 )
@@ -15,11 +18,20 @@ import (
 var Webapp embed.FS
 
 func WebHandler(l *logrus.Logger) func(w http.ResponseWriter, r *http.Request) {
+	wa, err := fs.Sub(Webapp, "dist")
+	if err != nil {
+		l.WithError(err).Error("Failed to load webapp from fs")
+	}
 
 	return func(w http.ResponseWriter, r *http.Request) {
-		wa, err := fs.Sub(Webapp, "dist")
-		if err != nil {
-			l.WithError(err).Error("Failed to load webapp from fs")
+		// Support frontend routing
+		if r.URL.Path != "/" {
+			_, err := fs.Stat(wa, strings.TrimPrefix(path.Clean(r.URL.Path), "/"))
+			if err != nil {
+				if os.IsNotExist(err) {
+					r.URL.Path = "/"
+				}
+			}
 		}
 		http.FileServer(http.FS(wa)).ServeHTTP(w, r)
 	}