Redirect too many times on main page only wordpress

Help
1

Hi, I have a domain.com and domain.com/mag in which the latter is the blog for domain.com.
This is my Caddyfile:

#domain.com/mag, domain.com/mag/* {
#  uri strip_prefix /mag
#  reverse_proxy mag.domain.com {
#    header_up Host mag.domain.com
#  }
#}

domain.com {

    route /mag/* {
        uri strip_prefix /mag
        reverse_proxy mag_site
    }
        
    root * /var/www/mydomain/dist
    # try_files {path} /index.html
    encode gzip
    reverse_proxy nuxt-website:8000
    # file_server
    log {
        output file         access.log
        format single_field common_log
    }
    # tls someone@gmail.com
}

My main doamin.com is working fine with no problem.
I have created a container for domain.com/mag and when I type domain.com/mag in my internet browser, I get redirected you too many times error, but if I enter domain.com/mag/some_article, I see no problem (except some problems like Mixed HTTP HTTPS contents).
Also if I enter domain.com/mag/info.php, it works fine.

This is curl -IL domain.com/mag result:

curl -IL domain.com/mag
HTTP/1.1 308 Permanent Redirect
Connection: close
Location: https://domain.com/mag
Server: Caddy
Date: Wed, 07 Jul 2021 08:43:06 GMT

HTTP/2 404 
accept-ranges: none
content-type: text/html; charset=utf-8
date: Wed, 07 Jul 2021 08:43:09 GMT
server: Caddy
vary: Accept-Encoding
content-length: 49107

What should I do to fix it?

2

Please fill out the help topic template. What version of Caddy are you using? What’s in your logs? How are you running Caddy? Those questions all matter.

3

1. Caddy version (caddy version):

v2.3.0 h1:fnrqJLa3G5vfxcxmOH/+kJOcunPLhSBnjgIvjXV/QTA=

2. How I run Caddy:

Docker container, command is: caddy run --config /etc/caddy/Caddyfile --adapter caddyfile

a. System environment:

Docker

b. Command:

caddy run --config /etc/caddy/Caddyfile --adapter caddyfile

c. Service/unit/compose file:

version: "3"
    
services:
  mag_db:
    build:
      context: .
      dockerfile: Dockerfile_db
    hostname: mag_db
    container_name: mag_db
    image: mag_db:1
    volumes:
      - /home/domain/wp/mag_db/:/var/lib/mysql/
      - /home/domain/wp/conf/mysql/:/etc/mysql/
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: 'ROOT'
      MYSQL_DATABASE: 'mag'
      MYSQL_USER: 'mag'
      MYSQL_PASSWORD: 'PASS'
    
  mag_site:
    build:
      context: .
      dockerfile: Dockerfile_site
    hostname: mag_site
    container_name: mag_site
    depends_on:
      - mag_db
    image: mag_site:1
    volumes:
      - /home/domain/wp/mag_site/:/var/www/html
      - /home/domain/wp/conf/apache2/:/etc/apache2/
    restart: always
    environment:
      WORDPRESS_DB_HOST: 'mag_db:3306'
      WORDPRESS_DB_USER: 'mag'
      WORDPRESS_DB_PASSWORD: 'PASS'
      WORDPRESS_DB_NAME: 'mag'
      WORDPRESS_DB_CHARSET: 'utf8'
      WORDPRESS_DB_COLLATE: '

d. My complete Caddyfile or JSON config:

golpino.com {

    route /mag/* {
        uri strip_prefix /mag
        reverse_proxy mag_site
    }

    root * /var/www/mydomain/dist
    # try_files {path} /index.html
    encode gzip
    reverse_proxy nuxt-website:8000
    # file_server
    log {
        output file         access.log
        format single_field common_log
    }
    # tls SOMEONE@gmail.com

3. The problem I’m having:

When I enter golpino.com/mag, I get too many redirects error. But if I type golpino.com/mag/some_article, I see the contents (except some mixed contents HTTPS issues).
Also if I run golpino.com/mag/info.php, I see the phpinfo() result.

curl -v result:

*   Trying IP:80...
* TCP_NODELAY set
* Connected to golpino.com.com (IP) port 80 (#0)
> GET /mag HTTP/1.1
> Host: golpino.com.com
> User-Agent: curl/7.68.0
> Accept: */*
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 308 Permanent Redirect
< Connection: close
< Location: https://golpino.com.com/mag
< Server: Caddy
< Date: Wed, 07 Jul 2021 20:01:25 GMT
< Content-Length: 0
< 
* Closing connection 0

curl -IL result:

HTTP/1.1 308 Permanent Redirect
Connection: close
Location: https://golpino.com/mag
Server: Caddy
Date: Wed, 07 Jul 2021 20:03:21 GMT

HTTP/2 301 
cache-control: no-store, no-cache, must-revalidate
content-type: text/html; charset=UTF-8
date: Wed, 07 Jul 2021 20:03:23 GMT
expires: Thu, 19 Nov 1981 08:52:00 GMT
location: https://golpino.com/mag/
pragma: no-cache
server: Caddy
server: Apache/2.4.38 (Debian)
set-cookie: PHPSESSID=0p7l3t18sk8823an332nadbhkt; path=/
x-powered-by: PHP/7.4.21
x-redirect-by: WordPress

And the second respond is being repeated much.

4. Error messages and/or full log output:

I do not see any error logs.

5. What I already tried:

I only tried changing the index.php file with a simple content like echo hello; and when the content is this, golpino.com/mag works fine.
Also if I try golpino.com/mag/some_article works fine.

6. Links to relevant resources:

Nothing

4

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