Test 304 doesn't throw

test/http.js

@@ -15,6 +15,11 @@ test.before('setup', async () => {
 		res.end();
 	});
 
+	s.on('/304', (req, res) => {
+		res.statusCode = 304;
+		res.end();
+	});
+
 	s.on('/404', (req, res) => {
 		setTimeout(() => {
 			res.statusCode = 404;
@@ -56,6 +61,14 @@ test('error with code', async t => {
 	}
 });
 
+test('status code 304 doesn\'t throw', async t => {
+	const p = got(`${s.url}/304`);
+	await t.notThrows(p);
+	const response = await p;
+	t.is(response.statusCode, 304);
+	t.is(response.body, '');
+});
+
 test('buffer on encoding === null', async t => {
 	const data = (await got(s.url, {encoding: null})).body;
 	t.truthy(Buffer.isBuffer(data));