From 99ef594cd036c95bd43e05facd3e3882fb5adead Mon Sep 17 00:00:00 2001
From: Carlos Escribano <carlosescri@gmail.com>
Date: Fri, 23 Oct 2020 17:56:25 +0200
Subject: [PATCH] fix: actual fix

---
 src/lib/request-utils.js                | 6 +++++-
 test/specs/routing/url-matching.test.js | 4 +---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/lib/request-utils.js b/src/lib/request-utils.js
index c282da53..b6869672 100644
--- a/src/lib/request-utils.js
+++ b/src/lib/request-utils.js
@@ -1,7 +1,8 @@
 let URL;
 // https://stackoverflow.com/a/19709846/308237
-// modified, URL constructor does not support protocol-relative urls
+// split, URL constructor does not support protocol-relative urls
 const absoluteUrlRX = new RegExp('^[a-z]+://', 'i');
+const protocolRelativeUrlRX = new RegExp('^//', 'i');
 
 const headersToArray = (headers) => {
 	// node-fetch 1 Headers
@@ -28,6 +29,9 @@ const normalizeUrl = (url) => {
 	if (absoluteUrlRX.test(url)) {
 		const u = new URL(url);
 		return u.href;
+	} else if (protocolRelativeUrlRX.test(url)) {
+		const u = new URL(url, 'http://dummy');
+		return u.href;
 	} else {
 		const u = new URL(url, 'http://dummy');
 		return u.pathname + u.search;
diff --git a/test/specs/routing/url-matching.test.js b/test/specs/routing/url-matching.test.js
index 3c1fc429..6594f941 100644
--- a/test/specs/routing/url-matching.test.js
+++ b/test/specs/routing/url-matching.test.js
@@ -20,10 +20,8 @@ describe('url matching', () => {
 		await fm.fetchHandler('http://a.co/path');
 		expect(fm.calls(true).length).to.equal(0);
 		await fm.fetchHandler('http://a.com/path');
-		expect(fm.calls(true).length).to.equal(1);
-		// gets normalized to http://a.com/path
 		await fm.fetchHandler('//a.com/path');
-		expect(fm.calls(true).length).to.equal(1);
+		expect(fm.calls(true).length).to.equal(2);
 	});
 
 	it('match exact strings with relative url', async () => {