From c5d6dbf4f2a46ffb6f672fff598706804cb50512 Mon Sep 17 00:00:00 2001
From: Sjors Ottjes <sjorsottjes@gmail.com>
Date: Mon, 18 Dec 2017 10:38:37 +0100
Subject: [PATCH] fix bug in purgecss extractor

`content.match` will return `null` on files without any  matches (e.g. empty files). This causes purgecss to fail. Returning an empty array on falsey values fixes this
---
 docs/source/docs/controlling-file-size.blade.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/source/docs/controlling-file-size.blade.md b/docs/source/docs/controlling-file-size.blade.md
index 8ca824df6..298401e72 100644
--- a/docs/source/docs/controlling-file-size.blade.md
+++ b/docs/source/docs/controlling-file-size.blade.md
@@ -165,7 +165,7 @@ let PurgecssPlugin = require("purgecss-webpack-plugin");
 // https://github.com/FullHuman/purgecss#extractor
 class TailwindExtractor {
   static extract(content) {
-    return content.match(/[A-z0-9-:\/]+/g);
+    return content.match(/[A-z0-9-:\/]+/g) || [];
   }
 }