Add Brotli support in Request (#819)

* document and request brotli

* Document different minimum version

Co-authored-by: Richie Bendall <richiebendall@gmail.com>

README.md

@@ -430,7 +430,7 @@ If no values are set, the following request headers will be sent automatically:
 
 | Header              | Value                                                    |
 | ------------------- | -------------------------------------------------------- |
-| `Accept-Encoding`   | `gzip,deflate` _(when `options.compress === true`)_      |
+| `Accept-Encoding`   | `gzip,deflate,br` _(when `options.compress === true`)_   |
 | `Accept`            | `*/*`                                                    |
 | `Connection`        | `close` _(when no `options.agent` is present)_           |
 | `Content-Length`    | _(automatically calculated, if possible)_                |

docs/CHANGELOG.md

@@ -7,6 +7,7 @@ Changelog
 
 **Work in progress!**
 
+- **Breaking:** minimum supported Node.js version is now 10.16.
 - Enhance: improve coverage.
 - Enhance: drop Babel (while keeping ESM) (#805).
 - Fix: export the `AbortError` class.

docs/v3-UPGRADE-GUIDE.md

@@ -19,7 +19,7 @@ other comparatively minor modifications.
 
 # Breaking Changes
 
-## Minimum supported Node.js version is now 10
+## Minimum supported Node.js version is now 10.16
 
 Since Node.js will deprecate version 8 at the end of 2019, we decided that node-fetch v3.x will not only drop support for Node.js 4 and 6 (which were supported in v2.x), but also for Node.js 8. We strongly encourage you to upgrade, if you still haven't done so. Check out Node.js' official [LTS plan] for more information on Node.js' support lifetime.
 

package.json

@@ -16,7 +16,7 @@
 		"*.d.ts"
 	],
 	"engines": {
-		"node": ">=10"
+		"node": ">=10.16"
 	},
 	"scripts": {
 		"build": "rollup -c",

src/index.js

@@ -284,7 +284,7 @@ export default function fetch(url, options_) {
 			}
 
 			// For br
-			if (codings === 'br' && typeof zlib.createBrotliDecompress === 'function') {
+			if (codings === 'br') {
 				body = pump(body, zlib.createBrotliDecompress(), error => {
 					reject(error);
 				});

src/request.js

@@ -239,7 +239,7 @@ export function getNodeRequestOptions(request) {
 
 	// HTTP-network-or-cache fetch step 2.15
 	if (request.compress && !headers.has('Accept-Encoding')) {
-		headers.set('Accept-Encoding', 'gzip,deflate');
+		headers.set('Accept-Encoding', 'gzip,deflate,br');
 	}
 
 	let {agent} = request;