diff --git a/source/js/next-boot.js b/source/js/next-boot.js
index 2b0970a..1f347a0 100644
--- a/source/js/next-boot.js
+++ b/source/js/next-boot.js
@@ -47,7 +47,18 @@ NexT.boot.refresh = function() {
     background: 'var(--content-bg-color)'
   });
   CONFIG.lazyload && window.lozad('.post-body img').observe();
-  CONFIG.pangu && window.pangu.spacingElementByTagName('main');
+  if (CONFIG.pangu) {
+    // Polyfill for requestIdleCallback if not supported
+    if (!window.requestIdleCallback) {
+      window.requestIdleCallback = function(cb) {
+        cb({
+          didTimeout   : false,
+          timeRemaining: () => 100
+        });
+      };
+    }
+    [...document.getElementsByTagName('main')].forEach(e => window.pangu.spacingNode(e));
+  }
 
   CONFIG.exturl && NexT.utils.registerExtURL();
   NexT.utils.wrapTableWithBox();