diff --git a/server/plugins.js b/server/plugins.js
index c9f01811..2ab0a497 100644
--- a/server/plugins.js
+++ b/server/plugins.js
@@ -7,7 +7,7 @@ module.exports = currify((plugins, req, res, next) => {
     if (req.url !== '/plugins.js')
         return next();
     
-    res.setHeader('content-type', 'application/javascript; charset=UTF-8');
+    res.setHeader('content-type', 'application/javascript; charset=utf-8');
     
     if (!plugins || !plugins.length)
         return res.send('');
diff --git a/test/plugins.js b/server/plugins.spec.js
similarity index 62%
rename from test/plugins.js
rename to server/plugins.spec.js
index 11b54117..d4ff35d2 100644
--- a/test/plugins.js
+++ b/server/plugins.spec.js
@@ -2,7 +2,7 @@
 
 const fs = require('fs');
 const test = require('supertape');
-const cloudcmd = require('..');
+const cloudcmd = require('./cloudcmd');
 
 const config = {
     auth: false,
@@ -26,6 +26,22 @@ test('cloudcmd: plugins: empty', async (t) => {
     t.end();
 });
 
+test('cloudcmd: plugins: empty: header', async (t) => {
+    const plugins = [];
+    const options = {
+        plugins,
+    };
+    
+    const {headers} = await request.get('/plugins.js', {
+        options,
+    });
+    
+    const expected = 'application/javascript; charset=utf-8';
+    
+    t.equal(headers.get('content-type'), expected, 'should content be empty');
+    t.end();
+});
+
 test('cloudcmd: plugins: one', async (t) => {
     const plugins = [
         __filename,
@@ -45,6 +61,25 @@ test('cloudcmd: plugins: one', async (t) => {
     t.end();
 });
 
+test('cloudcmd: plugins: one', async (t) => {
+    const plugins = [
+        __filename,
+    ];
+    
+    const options = {
+        plugins,
+    };
+    
+    const {headers} = await request.get('/plugins.js', {
+        options,
+    });
+    
+    const expected = 'application/javascript; charset=utf-8';
+    
+    t.equal(headers.get('content-type'), expected, 'should content be empty');
+    t.end();
+});
+
 test('cloudcmd: plugins: load error', async (t) => {
     const noEntry = __filename + Math.random();
     const plugins = [