From 7a9f03f913014423770bdc58dc9c9836ae24dfd8 Mon Sep 17 00:00:00 2001
From: Di Weng <mystery.wd@gmail.com>
Date: Sun, 21 Jan 2018 19:19:10 +0800
Subject: [PATCH] Detect and skip WebWorker scripts

---
 lib/addStylesClient.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/addStylesClient.js b/lib/addStylesClient.js
index c817574d..48bdfe6c 100644
--- a/lib/addStylesClient.js
+++ b/lib/addStylesClient.js
@@ -5,9 +5,10 @@
 */
 
 var hasDocument = typeof document !== 'undefined'
+var isWebWorker = typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope
 
 if (typeof DEBUG !== 'undefined' && DEBUG) {
-  if (!hasDocument) {
+  if (!isWebWorker && !hasDocument) {
     throw new Error(
     'vue-style-loader cannot be used in a non-browser environment. ' +
     "Use { target: 'node' } in your Webpack config to indicate a server-rendering environment."
@@ -48,6 +49,10 @@ var noop = function () {}
 var isOldIE = typeof navigator !== 'undefined' && /msie [6-9]\b/.test(navigator.userAgent.toLowerCase())
 
 module.exports = function (parentId, list, _isProduction) {
+  if (isWebWorker) {
+    return
+  }
+  
   isProduction = _isProduction
 
   var styles = listToStyles(parentId, list)