From 911a7744cef1ce61a89b2910a14078ea63a3b909 Mon Sep 17 00:00:00 2001
From: Luke Edwards <luke.edwards05@gmail.com>
Date: Mon, 6 Mar 2017 16:36:15 -0800
Subject: [PATCH 1/2] add comment as content string fallback

---
 lib/loader.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/loader.js b/lib/loader.js
index b5ec35bd..8584e66e 100644
--- a/lib/loader.js
+++ b/lib/loader.js
@@ -21,6 +21,7 @@ const asyncSassJobQueue = async.queue(sass.render, threadPoolSize - 1);
  * @param {string} content
  */
 function sassLoader(content) {
+    content = content || '//';
     const callback = this.async();
     const isSync = typeof callback !== "function";
     const self = this;

From 462ae5f49cdf8048833f7c159f1f9bf62b022b14 Mon Sep 17 00:00:00 2001
From: Johannes Ewald <johannes.ewald@peerigon.com>
Date: Tue, 7 Mar 2017 19:10:32 +0100
Subject: [PATCH 2/2] Improve check for empty content

This has been removed accidentally by a previous commit.
---
 lib/loader.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/loader.js b/lib/loader.js
index 8584e66e..da601753 100644
--- a/lib/loader.js
+++ b/lib/loader.js
@@ -21,7 +21,6 @@ const asyncSassJobQueue = async.queue(sass.render, threadPoolSize - 1);
  * @param {string} content
  */
 function sassLoader(content) {
-    content = content || '//';
     const callback = this.async();
     const isSync = typeof callback !== "function";
     const self = this;
@@ -44,6 +43,12 @@ function sassLoader(content) {
         addNormalizedDependency
     ));
 
+    // Skip empty files, otherwise it will stop webpack, see issue #21
+    if (options.data.trim() === "") {
+        callback(null, "");
+        return;
+    }
+
     // start the actual rendering
     asyncSassJobQueue.push(options, (err, result) => {
         if (err) {