doc: add example for setting Vary: Accept-Encoding header in zlib.md

PR-URL: nodejs#26308 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]>
Trott · Feb 28, 2019 · 86f13d6 · 86f13d6
1 parent a32cbe1
commit 86f13d6
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/doc/api/zlib.md b/doc/api/zlib.md
@@ -107,6 +107,8 @@ const http = require('http');
 const fs = require('fs');
 http.createServer((request, response) => {
   const raw = fs.createReadStream('index.html');
+  // Store both a compressed and an uncompressed version of the resource.
+  response.setHeader('Vary: Accept-Encoding');
   let acceptEncoding = request.headers['accept-encoding'];
   if (!acceptEncoding) {
     acceptEncoding = '';