From d3df177df99eff60de1314e6f0ccdf647568b09e Mon Sep 17 00:00:00 2001
From: jason5ng32 <jason5ng32@gmail.com>
Date: Mon, 5 Oct 2026 11:29:50 +0800
Subject: [PATCH] Fix(ui): Enter on an empty MAC Lookup input does nothing

The shared parser rejects an empty string, so Enter in the empty field
showed "Invalid physical address". onSubmit now returns early on empty
input, as IP Calculator does.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 frontend/components/advanced-tools/MacChecker.vue | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/frontend/components/advanced-tools/MacChecker.vue b/frontend/components/advanced-tools/MacChecker.vue
index 019188e7..f8a23204 100644
--- a/frontend/components/advanced-tools/MacChecker.vue
+++ b/frontend/components/advanced-tools/MacChecker.vue
@@ -178,10 +178,11 @@ const validateInput = (input) => {
 };
 
 const onSubmit = () => {
+    const raw = queryMAC.value.trim();
+    if (!raw) return;
     trackEvent('Section', 'StartClick', 'MACChecker');
     errorMsg.value = '';
     macCheckResult.value = {};
-    const raw = queryMAC.value.trim();
     picked.value = EXAMPLES.some((e) => e.input === raw) ? raw : '';
     const query = validateInput(raw);
     if (query) getMacInfo(query);