still fixing UI issue

internal/httpapp/api_handlers.go

@@ -7,6 +7,7 @@ import (
 	"net/http"
 	"strconv"
 	"strings"
+	"time"
 
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/auth"
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/errors"
@@ -78,14 +79,21 @@ func (a *App) handleCreatePool(w http.ResponseWriter, r *http.Request) {
 
 	err := a.zfs.CreatePool(req.Name, req.VDEVs, req.Options)
 
-	// Always check if pool exists, even if creation reported an error
-	// Sometimes pool is created despite errors (e.g., mountpoint issues)
+	// CRITICAL: Always check if pool exists, regardless of reported error
+	// ZFS often reports mountpoint errors but pool is still created
+	// Wait a brief moment for pool to be fully registered
+	time.Sleep(200 * time.Millisecond)
+
 	pool, getErr := a.zfs.GetPool(req.Name)
 	if getErr == nil {
-		// Pool exists - return success even if creation reported an error
+		// Pool exists - this is success!
 		if err != nil {
-			log.Printf("create pool reported error but pool exists: %v", err)
+			log.Printf("info: pool %s created successfully despite reported error: %v", req.Name, err)
 		}
+		// Set cache-control headers
+		w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
+		w.Header().Set("Pragma", "no-cache")
+		w.Header().Set("Expires", "0")
 		writeJSON(w, http.StatusCreated, pool)
 		return
 	}