diff --git a/pages/share/get.php b/pages/share/get.php
index e4bea98..f0a9a56 100644
--- a/pages/share/get.php
+++ b/pages/share/get.php
@@ -50,7 +50,7 @@
-
+
= result.length)) {
+ if ((null != result) && (MAX_PARAM_SIZE >= result.length)) {
document.getElementById("secret").value = result;
document.getElementById("share-secret-btn").disabled = false;