From 45a382eef3ecd5f981a902788278cfeb4f5f067b Mon Sep 17 00:00:00 2001
From: mattias <mattias@idefix.freepascal.org>
Date: Thu, 11 Apr 2019 10:52:18 +0000
Subject: [PATCH] nodejs: fixed GetEnvironmentVariable on non existing vars

---
 packages/fcl-base/nodejsapp.pas | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/packages/fcl-base/nodejsapp.pas b/packages/fcl-base/nodejsapp.pas
index 1a22fc3..91b4f4e 100644
--- a/packages/fcl-base/nodejsapp.pas
+++ b/packages/fcl-base/nodejsapp.pas
@@ -63,8 +63,14 @@ begin
 end;
 
 function MyGetEnvironmentVariable(Const EnvVar: String): String;
+var
+  v: JSValue;
 begin
-  Result:=String(TNJSProcess.env[EnvVar]);
+  v:=TNJSProcess.env[EnvVar];
+  if isString(v) then
+    Result:=String(v)
+  else
+    Result:='';
 end;
 
 function MyGetEnvironmentVariableCount: Integer;