From 4404a0b0581ba226f6935f588649ce201a369d61 Mon Sep 17 00:00:00 2001
From: Megan Thomas <methomas@adobe.com>
Date: Tue, 25 Jun 2024 17:23:25 -0700
Subject: [PATCH] MWPW-143579 Log 404s to lana

---
 scripts/scripts.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/scripts.js b/scripts/scripts.js
index 86f384d..7896f67 100644
--- a/scripts/scripts.js
+++ b/scripts/scripts.js
@@ -199,4 +199,10 @@ const miloLibs = setLibs(LIBS);
   if (document.querySelector('.faas')) {
     loadStyle('/styles/faas.css');
   }
+  const observer = new PerformanceObserver((list) => {
+    list.getEntries().forEach((entry) => {
+      if (entry.responseStatus === 404) window.lana?.log(`The resource ${entry.name} returned a 404 status.`, { tags: 'errorType=error,module=resource-404' });
+    });
+  });
+  observer.observe({ type: 'resource', buffered: true });
 }());