Adds Compression to ExpressJS

server.js

@@ -1,4 +1,5 @@
 const express = require("express");
+const compression = require("compression");
 const cors = require("cors");
 const path = require("path");
 
@@ -7,6 +8,17 @@ const PKG_NAME = "frontend-hideyoshi.com";
 const app = express();
 app.use(cors());
 
+function shouldCompress (req, res) {
+  if (req.headers['x-no-compression']) {
+    // don't compress responses with this request header
+    return false
+  }
+
+  // fallback to standard filter function
+  return compression.filter(req, res)
+}
+
+app.use(compression({ filter: shouldCompress }))
 app.use(express.static(`${__dirname}/dist/${PKG_NAME}`));
 
 app.get("/*", (req, res) => {