From 64d152f0e3ae788780585a9aa4b767c47d32d947 Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Thu, 8 Aug 2024 21:43:29 -0700
Subject: [PATCH] Show error message on UI to notify the user

---
 index.html | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/index.html b/index.html
index 76e5adb..080d980 100644
--- a/index.html
+++ b/index.html
@@ -83,8 +83,13 @@
         document.querySelector('#out-header').textContent = `[\n  ${header.join(',\n  ')}\n]`;
         document.querySelector('#out-rlp').textContent = rlp;
         document.querySelector('#out-hash').textContent = hash;
-        document.querySelector('output').style.setProperty('display', 'unset');
       }
+      else {
+        document.querySelector('#out-header').textContent = `Unable to retrieve block header. Error: ${response?.message ?? 'Other'}`;
+        document.querySelector('#out-rlp').textContent = 'N/A';
+        document.querySelector('#out-hash').textContent = 'N/A';
+      }
+      document.querySelector('output').style.setProperty('display', 'unset');
 
       e.target.removeAttribute('data-loading');
     });
-- 
2.47.3