ee auth not working on MU subdom site

[dhsathiya]

issue

ee auth puts http auth on Main site but it is not working on subdom sites.

Replication steps

ee site create example.com --type=wp --public-dir=current --mu=subdom --debug
# create a new subdom site a.example.com
ee auth create example.com --user=user --pass=password
# Auth will be there for example.com only

System Information

• ee cli info
  EE 4.3.1
• lsb_release -a

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal

• docker version

Client: Docker Engine - Community
 Version: 20.10.7
 API version: 1.41
 Go version: go1.13.15
 Git commit: f0df350
 Built: Wed Jun 2 11:56:38 2021
 OS/Arch: linux/amd64
 Context: default
 Experimental: true

Server: Docker Engine - Community
 Engine:
 Version: 20.10.7
 API version: 1.41 (minimum version 1.12)
 Go version: go1.13.15
 Git commit: b0f5bc3
 Built: Wed Jun 2 11:54:50 2021
 OS/Arch: linux/amd64
 Experimental: false
 containerd:
 Version: 1.4.6
 GitCommit: d71fcd7d8303cbf684402823e425e9dd2e99285d
 runc:
 Version: 1.0.0-rc95
 GitCommit: b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
 docker-init:
 Version: 0.19.0
 GitCommit: de40ad0

• docker-compose version

docker-compose version 1.22.0, build f46880fe
docker-py version: 3.4.1
CPython version: 3.6.6
OpenSSL version: OpenSSL 1.1.0f 25 May 2017