From e3633fd8e52b866d56422dbe2672c7158f84cc94 Mon Sep 17 00:00:00 2001
From: tomsmeding <tom.smeding@gmail.com>
Date: Fri, 17 Jan 2020 22:19:24 +0100
Subject: unicode: Don't send lookup requests for empty string

---
 modules/unicode/index.html | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/modules/unicode/index.html b/modules/unicode/index.html
index 9335081..23492cd 100644
--- a/modules/unicode/index.html
+++ b/modules/unicode/index.html
@@ -18,6 +18,9 @@ body {
 </style>
 <script>
 function do_lookup() {
+	var input = document.getElementById("input").value;
+	if (input.length == 0) return;
+
 	var xhr = new XMLHttpRequest();
 	xhr.onreadystatechange = function() {
 		if (xhr.readyState == 4) {
@@ -28,7 +31,8 @@ function do_lookup() {
 			}
 		}
 	};
-	xhr.open("GET", "/unicode/lookup/" + encodeURIComponent(document.getElementById("input").value));
+
+	xhr.open("GET", "/unicode/lookup/" + encodeURIComponent(input));
 	xhr.responseType = "text";
 	xhr.setRequestHeader("Content-Type", "text/plain");
 	xhr.send();
-- 
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