Pass custom timeout to subsequent requests on redirect (#615)

src/index.js

@@ -153,6 +153,7 @@ export default function fetch(url, opts) {
 							method: request.method,
 							body: request.body,
 							signal: request.signal,
+							timeout: request.timeout
 						};
 
 						// HTTP-redirect fetch step 9

test/server.js

@@ -275,6 +275,14 @@ export default class TestServer {
 			}, 1000);
 		}
 
+		if (p === '/redirect/slow-chain') {
+			res.statusCode = 301;
+			res.setHeader('Location', '/redirect/slow');
+			setTimeout(function() {
+				res.end();
+			}, 100);
+		}
+
 		if (p === '/redirect/slow-stream') {
 			res.statusCode = 301;
 			res.setHeader('Location', '/slow');

test/test.js

@@ -799,6 +799,17 @@ describe('node-fetch', () => {
 		});
 	});
 
+	it('should allow custom timeout on redirected requests', function() {
+		this.timeout(2000);
+		const url = `${base}redirect/slow-chain`;
+		const opts = {
+			timeout: 200
+		};
+		return expect(fetch(url, opts)).to.eventually.be.rejected
+			.and.be.an.instanceOf(FetchError)
+			.and.have.property('type', 'request-timeout');
+	});
+
 	it('should clear internal timeout on fetch response', function (done) {
 		this.timeout(2000);
 		spawn('node', ['-e', `require('./')('${base}hello', { timeout: 10000 })`])