From 4bad8585e51a855aa16a090154ae62f35a1ab772 Mon Sep 17 00:00:00 2001
From: Andrew Welker <andrew.welker@gmail.com>
Date: Wed, 26 Aug 2020 14:24:20 -0600
Subject: [PATCH] add null check to popup handler method

---
 .../UIDrivers/Essentials/EssentialsHeaderDriver.cs              | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PepperDashEssentials/UIDrivers/Essentials/EssentialsHeaderDriver.cs b/PepperDashEssentials/UIDrivers/Essentials/EssentialsHeaderDriver.cs
index 68d4cbcb..ccaedd9c 100644
--- a/PepperDashEssentials/UIDrivers/Essentials/EssentialsHeaderDriver.cs
+++ b/PepperDashEssentials/UIDrivers/Essentials/EssentialsHeaderDriver.cs
@@ -349,7 +349,7 @@ namespace PepperDash.Essentials
             // Check if the popup interlock is shown, and if one of the header popups is current, then show the carets subpage
             if (e.IsShown)
             {
-                if (e.NewJoin == Parent.EnvironmentDriver.BackgroundSubpageJoin)
+                if (Parent.EnvironmentDriver != null && e.NewJoin == Parent.EnvironmentDriver.BackgroundSubpageJoin)
                     headerPopupShown = true;
                 else if (e.NewJoin == UIBoolJoin.HeaderActiveCallsListVisible)
                     headerPopupShown = true;