From 880beafc9f60806597d143b71afd6da226367896 Mon Sep 17 00:00:00 2001
From: Andrew Gerrand <adg@golang.org>
Date: Tue, 13 Jul 2010 09:21:42 +1000
Subject: [PATCH] http: fix ParseURL to handle //relative_path properly

Fixes #900.

R=rsc
CC=golang-dev
https://golang.org/cl/1756042
---
 src/pkg/http/url.go      |  2 +-
 src/pkg/http/url_test.go | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/pkg/http/url.go b/src/pkg/http/url.go
index 148ada4b25858..12247ca17b801 100644
--- a/src/pkg/http/url.go
+++ b/src/pkg/http/url.go
@@ -318,7 +318,7 @@ func ParseURL(rawurl string) (url *URL, err os.Error) {
 	}
 
 	// Maybe path is //authority/path
-	if len(path) > 2 && path[0:2] == "//" {
+	if url.Scheme != "" && len(path) > 2 && path[0:2] == "//" {
 		url.Authority, path = split(path[2:], '/', false)
 	}
 	url.RawPath = path + query
diff --git a/src/pkg/http/url_test.go b/src/pkg/http/url_test.go
index 3d665100af6ce..097669b9c2ae6 100644
--- a/src/pkg/http/url_test.go
+++ b/src/pkg/http/url_test.go
@@ -174,6 +174,17 @@ var urltests = []URLTest{
 		},
 		"",
 	},
+	// leading // without scheme shouldn't create an authority
+	URLTest{
+		"//foo",
+		&URL{
+			Raw:     "//foo",
+			Scheme:  "",
+			RawPath: "//foo",
+			Path:    "//foo",
+		},
+		"",
+	},
 }
 
 var urlnofragtests = []URLTest{