From 6572641f3d1dd1638640dc83b43e5862bd71554a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kristj=C3=A1n=20Oddsson?= <koddsson@github.com>
Date: Fri, 9 Mar 2018 15:10:12 +0000
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=8Dcheck=20if=20`<local-time=20/>`=20i?=
 =?UTF-8?q?s=20defined=20before=20registering?=
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---
 src/local-time-element.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/local-time-element.js b/src/local-time-element.js
index 6c06ec9..2e81041 100644
--- a/src/local-time-element.js
+++ b/src/local-time-element.js
@@ -119,5 +119,7 @@ function formatTime(el) {
 //   var time = new LocalTimeElement()
 //   # => <local-time></local-time>
 //
-window.LocalTimeElement = LocalTimeElement
-window.customElements.define('local-time', LocalTimeElement)
+if (!window.customElements.get('local-time')) {
+  window.LocalTimeElement = LocalTimeElement
+  window.customElements.define('local-time', LocalTimeElement)
+}