diff --git a/server/ajax/task.go b/server/ajax/task.go
index 5ac92e6..c98fedd 100755
--- a/server/ajax/task.go
+++ b/server/ajax/task.go
@@ -27,16 +27,18 @@ func (a *Ajax) loadTasks(w http.ResponseWriter, r *http.Request) error {
 		if len(whitelistTags) == 0 {
 			return true
 		}
-		whitelistTagMap := make(map[string]struct{})
-		for _, tag := range whitelistTags {
-			whitelistTagMap[tag] = struct{}{}
-		}
-		for _, tag := range t.Tags {
-			if _, ok := whitelistTagMap[tag]; ok {
-				return true
+		for _, whitelisted := range whitelistTags {
+			found := false
+			for _, tag := range t.Tags {
+				if whitelisted == tag {
+					found = true
+				}
+			}
+			if !found {
+				return false
 			}
 		}
-		return false
+		return true
 	}
 	filterSubstr := func(t *task.Task) bool {
 		substr := form.Get(r, "s")