From d60f9c2549c7dfb0fbd6c9c8984c215f5dd75e76 Mon Sep 17 00:00:00 2001
From: JohannLai <johann_lai@outlook.com>
Date: Fri, 17 Jul 2020 00:08:29 +0800
Subject: fix(cli/js/web): IPv6 hostname should be compressed (#6772)

---
 cli/js/web/url.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'cli/js')

diff --git a/cli/js/web/url.ts b/cli/js/web/url.ts
index f466f9583..fabef3329 100644
--- a/cli/js/web/url.ts
+++ b/cli/js/web/url.ts
@@ -565,7 +565,8 @@ function encodeHostname(s: string, isSpecial = true): string {
     if (!s.match(/^\[[0-9A-Fa-f.:]{2,}\]$/)) {
       throw new TypeError("Invalid hostname.");
     }
-    return s.toLowerCase();
+    // IPv6 address compress
+    return s.toLowerCase().replace(/\b:?(?:0+:?){2,}/, "::");
   }
 
   let result = s;
-- 
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