From a5ff29d43a952ebe2fcc18181a01beda0e5d62d2 Mon Sep 17 00:00:00 2001
From: Ivan Shen <iwshen11@gmail.com>
Date: Tue, 5 Mar 2019 16:41:47 -0500
Subject: remove unnecessary !!

---
 web/public/javascripts/map.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/web/public/javascripts/map.js b/web/public/javascripts/map.js
index 2547780..4b8b8f3 100644
--- a/web/public/javascripts/map.js
+++ b/web/public/javascripts/map.js
@@ -24,7 +24,7 @@ L.tileLayer('https://stamen-tiles-{s}.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}{r}
 	ext: 'png'
 }).addTo(map);
 plotPointsOnMap(points);
-if (!!window.EventSource) {
+if (window.EventSource) {
 	var source = new EventSource('/stream');
   
 	source.addEventListener('message', function(e) {
@@ -46,4 +46,4 @@ if (!!window.EventSource) {
 	}, false)
 } else {
 	console.log("sse not supported.");
-}
\ No newline at end of file
+}
-- 
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