Error: "No access token provided."

[ichasco]

Hi,
I have configured through gitlab oauth. But it says "no access token provided"

Compiled modules:

NGINX_VERSION 1.17.9
LUA_NGX_MODULE 0.10.13
NGX_DEVEL_KIT 0.3.1
LUAJIT_VERSION 2.0.5

Luarock installed modules:

lua-cjson
lua-resty-http
luaossl
ngx-oauth

The conf is:

nginx.conf

    lua_ssl_trusted_certificate /etc/ssl/certs/ca-certificates.crt;
    lua_ssl_verify_depth 3;
    lua_package_path '/usr/local/share/lua/5.1/ngx-oauth/?.lua;;';

default.conf

    set $oauth_client_id                'XXXXXX';
    set $oauth_client_secret            'XXXXXX';
    set $oauth_redirect_uri             '/_oauth/callback';
    set $oauth_authorization_url        'https://git.example.com/oauth/authorize';
    set $oauth_token_url                'https://git.example.com/oauth/token';
    set $oauth_userinfo_url             'https://git.example.com/oauth/userinfo';

    location /_oauth/login {
        content_by_lua_file '/usr/local/share/lua/5.1/ngx-oauth-login.lua';
    }

    location /_oauth/callback {
        content_by_lua_file '/usr/local/share/lua/5.1/ngx-oauth-redirect-handler.lua';
    }

    location /_oauth/logout {
        content_by_lua_file '/usr/local/share/lua/5.1/ngx-oauth-logout.lua';
    }

    location / {
        access_by_lua_file '/usr/local/share/lua/5.1/ngx-oauth-proxy.lua';
        rewrite ^/_proxy/(.*)$ /$1 break;
        proxy_pass http://example;
    }

Log errors:

nginx | 2020/04/05 17:53:26 [warn] 7#0: *67 [lua] nginx.lua:33: log_formatted(): [ngx-oauth] No access token provided., client: 188.127.X.X, server: _, request: "GET / HTTP/1.1", host: "example.com"

Thanks