From c2b0be1f2c1c2c804fc92f5a85a2669656003965 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bar=C4=B1=C5=9F=20Soner=20U=C5=9Fakl=C4=B1?=
 <baris@nodebb.org>
Date: Mon, 2 Jul 2018 17:11:32 -0400
Subject: [PATCH] if stack is undefined fallback to message and then to
 hardcoded string

---
 src/meta/minifier.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/meta/minifier.js b/src/meta/minifier.js
index c48bbb890f..14da9beb93 100644
--- a/src/meta/minifier.js
+++ b/src/meta/minifier.js
@@ -112,7 +112,7 @@ if (process.env.minifier_child) {
 				if (err) {
 					process.send({
 						type: 'error',
-						message: err.stack,
+						message: err.stack || err.message || 'unknown error',
 					});
 					return;
 				}
@@ -277,7 +277,7 @@ function buildCSS(data, callback) {
 			from: undefined,
 		}).then(function (result) {
 			process.nextTick(callback, null, { code: result.css });
-		}, function (err) {
+		}).catch(function (err) {
 			process.nextTick(callback, err);
 		});
 	});