missing authorization header when .npmrc scoped registry is configured with root path

[synox]

Using yarn 1.22.19 on macos 14.4.1 (23E224). It seems yarn does not honor the .npmrc config for domains, and only matches the exact path.

https://docs.npmjs.com/cli/v10/configuring-npm/npmrc#auth-related-configuration specifies to that we can configure at the domain level:

@myorg:registry=https://somewhere-else.com/myorg
@another:registry=https://somewhere-else.com/another
//registry.npmjs.org/:_authToken=MYTOKEN

; would apply to both @myorg and @another
; //somewhere-else.com/:_authToken=MYTOKEN

; would apply only to @myorg
//somewhere-else.com/myorg/:_authToken=MYTOKEN1

; would apply only to @another
//somewhere-else.com/another/:_authToken=MYTOKEN2

Let's recreate this config and reproduce the problem:

• create a new project:
• run yarn init
• create ~/.npmrc: (replaced somewhere-else.com with localhost)

@myorg:registry=http://localhost/myorg
@another:registry=http://localhost/another

; would apply to both @myorg and @another
//localhost/:_authToken=MYTOKEN

• run a dummy webserver: sudo -i, then while true; do echo -e "HTTP/1.1 200 OK\n\n $(date)" | nc -l 80 ; done.
• run yarn add @myorg/test1
  output:

❯ yarn  add @myorg/test1 --verbose
yarn add v1.22.19
...
warning package.json: "test" is also the name of a node core module
verbose 0.100344417 Checking for configuration file "/Users/user/.npmrc".
...
verbose 0.10390275 current time: 2024-05-03T03:06:11.576Z
info No lockfile found.
warning [email protected]: "test" is also the name of a node core module
[1/4] 🔍  Resolving packages...
verbose 0.121385792 Performing "GET" request to "http://localhost/myorg/@myorg%2ftest1".
verbose 0.130306959 Error: http://localhost/myorg/@myorg%2ftest1: Parse Error: Expected HTTP/
...
error An unexpected error occurred: "http://localhost/myorg/@myorg%2ftest1: Parse Error: Expected HTTP/".
...

Request in the HTTP output is misssing authorization header:

GET /myorg/@myorg%2ftest1 HTTP/1.1
User-Agent: yarn/1.22.19 npm/? node/v20.12.2 darwin arm64
Accept: application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*
host: localhost
accept-encoding: gzip, deflate
Connection: keep-alive

However, when running the same command with npm: npm install @myorg/test1 it has the correct authorization header.

GET /myorg/@myorg%2ftest1 HTTP/1.1
user-agent: npm/10.5.0 node/v20.12.2 darwin arm64 workspaces/false
pacote-version: 17.0.6
pacote-req-type: packument
pacote-pkg-id: registry:@myorg/test1
accept: application/json
npm-auth-type: web
npm-command: install
authorization: Bearer MYTOKEN
Accept-Encoding: gzip,deflate
Host: localhost
connection: keep-alive