diff --git a/src/player.js b/src/player.js
index 6019c1b..b711994 100644
--- a/src/player.js
+++ b/src/player.js
@@ -58,7 +58,10 @@ export function updatePlayerUI(s) {
 }
 
 let _npBgCurr = 'a';
+let _npBgLastUrl = '';
 function _crossfadeNpBg(cv) {
+  if ((cv || '') === _npBgLastUrl) return;
+  _npBgLastUrl = cv || '';
   const currEl = document.getElementById(`np-bg-${_npBgCurr}`);
   const nextId = _npBgCurr === 'a' ? 'b' : 'a';
   const nextEl = document.getElementById(`np-bg-${nextId}`);