Add correct content-type header for gzipped version. (vercel#705)

arunoda · rauchg · commit 042ffa117509 · 2017-01-08T18:12:10.000-08:00
diff --git a/package.json b/package.json
@@ -62,6 +62,7 @@
     "is-windows-bash": "1.0.3",
     "json-loader": "0.5.4",
     "loader-utils": "0.2.16",
+    "mime-types": "2.1.13",
     "minimist": "1.2.0",
     "mkdirp-then": "1.2.0",
     "mz": "2.6.0",
diff --git a/server/render.js b/server/render.js
@@ -3,6 +3,7 @@ import { createElement } from 'react'
 import { renderToString, renderToStaticMarkup } from 'react-dom/server'
 import send from 'send'
 import accepts from 'accepts'
+import mime from 'mime-types'
 import requireModule from './require'
 import resolvePath from './resolve'
 import readPage from './read-page'
@@ -149,6 +150,8 @@ export async function serveStaticWithGzip (req, res, path) {
 
   try {
     const gzipPath = `${path}.gz`
+    const contentType = mime.lookup(path) || 'application/octet-stream'
+    res.setHeader('Content-Type', contentType)
     res.setHeader('Content-Encoding', 'gzip')
     await serveStatic(req, res, gzipPath)
   } catch (ex) {
diff --git a/yarn.lock b/yarn.lock
