From c0f2a066ff1de2aac20e9697d358e933010db665 Mon Sep 17 00:00:00 2001
From: Ferotiq <64989416+Ferotiq@users.noreply.github.com>
Date: Tue, 22 Feb 2022 07:12:48 -0600
Subject: [PATCH] Warn users on edge about disabling efficiency mode (#2562)

* add edge message

* Update test-timer.js

* Update test-timer.js
---
 frontend/src/scripts/test/test-timer.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/frontend/src/scripts/test/test-timer.js b/frontend/src/scripts/test/test-timer.js
index 403bd1b5f..2533a0eeb 100644
--- a/frontend/src/scripts/test/test-timer.js
+++ b/frontend/src/scripts/test/test-timer.js
@@ -220,10 +220,16 @@ export async function start() {
         slowTimerCount++;
         if (slowTimerCount > 5) {
           //slow timer
+          
+          if (window.navigator.userAgent.includes("Edg")) {
+            Notifications.add('This bad performance could be caused by "efficiency mode" on Microsoft Edge.');
+          }
+          
           Notifications.add(
             "Stopping the test due to bad performance. This would cause test calculations to be incorrect. If this happens a lot, please report this.",
             -1
           );
+          
           TimerEvent.dispatch("fail", "slow timer");
         }
       }