fix caching UI for pool

internal/httpapp/api_handlers.go

@@ -40,6 +40,12 @@ func (a *App) handleListPools(w http.ResponseWriter, r *http.Request) {
 	if pools == nil {
 		pools = []models.Pool{}
 	}
+
+	// Set cache-control headers to prevent caching - pools list changes frequently
+	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.StatusOK, pools)
 }
 
@@ -114,6 +120,11 @@ func (a *App) handleDeletePool(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// Set cache-control headers to prevent caching of this response
+	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.StatusOK, map[string]string{"message": "pool destroyed", "name": name})
 }
 

internal/httpapp/cache_middleware.go

@@ -4,6 +4,7 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"net/http"
+	"strings"
 	"sync"
 	"time"
 )
@@ -230,7 +231,7 @@ func (rw *cacheResponseWriter) Write(b []byte) (int, error) {
 
 // shouldSkipCache determines if a path should skip caching
 func (a *App) shouldSkipCache(path string) bool {
-	// Skip caching for dynamic endpoints
+	// Skip caching for dynamic endpoints and ZFS/storage endpoints that change frequently
 	skipPaths := []string{
 		"/metrics",
 		"/healthz",
@@ -238,10 +239,20 @@ func (a *App) shouldSkipCache(path string) bool {
 		"/api/v1/system/info",
 		"/api/v1/system/logs",
 		"/api/v1/dashboard",
+		"/api/v1/pools",
+		"/api/v1/pools/available",
+		"/api/v1/datasets",
+		"/api/v1/zvols",
+		"/api/v1/disks",
+		"/api/v1/shares/smb",
+		"/api/v1/exports/nfs",
+		"/api/v1/iscsi/targets",
+		"/api/v1/snapshots",
+		"/api/v1/snapshot-policies",
 	}
 
 	for _, skipPath := range skipPaths {
-		if path == skipPath {
+		if path == skipPath || strings.HasPrefix(path, skipPath+"/") {
 			return true
 		}
 	}