V2.4.8 www to non-www redirect

Traefik Traefik v2 (latest)
,
1

Hi, guys. I am new in Traefik. And I've stuck in problem of configuring www to non-www redirection globally in Traefik config:
Here is related configs:
STATIC:

entryPoints:
  web:
    address: :80
    http:
      redirections:
        entryPoint:
          to: websecure

  websecure:
    address: :443
    http:
      middlewares:
        - secureHeaders@file
        - nofloc@file
        - www_cut@file
      tls:
        certResolver: letsencrypt

DYNAMIC:


http:
  middlewares:
    nofloc:
      headers:
        customResponseHeaders:
          Permissions-Policy: "interest-cohort=()"
    secureHeaders:
      headers:
        sslRedirect: true
        forceSTSHeader: true
        stsIncludeSubdomains: true
        stsPreload: true
        stsSeconds: 31536000
    www_cut:
      redirectRegex:
        permanent: true
        regex: "^https?://(?:www\\.)?(.+)"
        replacement: "https://${1}"
#        regex: "^(www\\.)?(.+)"
#        replacement: "https://${2}"

As you can see I am trying to attach www_cut middleware to the websecure entry point

when I am trying to get to www.blog.mydomain.ru I am getting in logs:
raefik | time="2021-05-23T20:15:42Z" level=debug msg="Serving default certificate for request: "www. blog .mydomain. ru""
traefik | time="2021-05-23T20:15:42Z" level=debug msg="http: TLS handshake error from 109.197.103.92:51229: read tcp 172.28.0.4:443->109.197.103.92:51229: read: connection reset by peer"
traefik | time="2021-05-23T20:15:43Z" level=debug msg="Serving default certificate for request: "www. blog .mydomain .ru""
traefik | time="2021-05-23T20:15:43Z" level=debug msg="http: TLS handshake error from 109.197.103.92:51230: EOF"
traefik | time="2021-05-23T20:15:43Z" level=debug msg="http: TLS handshake error from 109.197.103.92:51231: tls: client offered only unsupported versions: [301]"
traefik | time="2021-05-23T20:15:43Z" level=debug msg="Serving default certificate for request: "www .blog .mydomain. ru""
traefik | time="2021-05-23T20:15:44Z" level=debug msg="http: TLS handshake error from 109.197.103.92:51232: read tcp 172.28.0.4:443->109.197.103.92:51232: read: connection reset by peer"

Appreciate your help.