utf-8 encode rss

lib/rss.js

@@ -31,7 +31,7 @@ const generateRssItem = (item) => {
 
 export default function generateRssFeed (items) {
   const itemsList = items.map(generateRssItem)
-  return `
+  return `<?xml version="1.0" encoding="UTF-8" ?>
     <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
       <channel>
         <title>${SITE_TITLE}</title>

pages/rss.js

@@ -17,7 +17,7 @@ export async function getServerSideProps ({ req, res }) {
 
   if (!items || error) return emptyProps
 
-  res.setHeader('Content-Type', 'text/xml')
+  res.setHeader('Content-Type', 'text/xml; charset=utf-8')
   res.write(generateRssFeed(items))
   res.end()