From 7c89237104b9ea35ae262b1ed9e43575a1fbd01a Mon Sep 17 00:00:00 2001
From: Arlo Siemsen <arsiem@microsoft.com>
Date: Tue, 25 Oct 2022 17:36:39 -0500
Subject: [PATCH] Add Accept-Encoding request header to enable compression

---
 src/cargo/ops/registry.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cargo/ops/registry.rs b/src/cargo/ops/registry.rs
index 80772e03998..aded54ab63d 100644
--- a/src/cargo/ops/registry.rs
+++ b/src/cargo/ops/registry.rs
@@ -643,6 +643,9 @@ pub fn configure_http_handle(config: &Config, handle: &mut Easy) -> CargoResult<
         handle.useragent(&format!("cargo {}", version()))?;
     }
 
+    // Empty string accept encoding expands to the encodings supported by the current libcurl.
+    handle.accept_encoding("")?;
+
     fn to_ssl_version(s: &str) -> CargoResult<SslVersion> {
         let version = match s {
             "default" => SslVersion::Default,