From: Benjamin Auder <benjamin.auder@somewhere>
Date: Sun, 16 Feb 2020 00:04:15 +0000 (+0100)
Subject: Bug fix
X-Git-Url: https://git.auder.net/doc/html/pieces/%7B%7B%20asset%28%27mixstore/css/%7B%7B?a=commitdiff_plain;h=566592f84607adf19a812f00c13a75e85d8468e7;p=vchess.git

Bug fix
---

diff --git a/client/src/views/Hall.vue b/client/src/views/Hall.vue
index ac2bd78f..b3f5b690 100644
--- a/client/src/views/Hall.vue
+++ b/client/src/views/Hall.vue
@@ -278,6 +278,10 @@ export default {
       let elt = !!e
         ? e.target
         : document.getElementById("btn" + letter.toUpperCase() + type);
+      // WARNING: this method is called at created in a setTimeout:
+      // => the page could have changed and element no longer defined.
+      if (!elt)
+        return;
       elt.classList.add("active");
       if (!!elt.previousElementSibling)
         elt.previousElementSibling.classList.remove("active");