Express gzip stream


[Node js zlib](https://texonom.com/node-js-zlib-bdc9a9ea036d4958974f0fc10633d550) 
```typeres.writeHead(200, { 'Content-Encoding': 'gzip' })  const cache = cachePath(req)  const gz = createReadStream(`${cache}\\x.gz`)  gz.pipe(res)```









