sub_filte替换域名无效的解决方案

问题
主要问题还是因为gzip的关系, 大部分网站传输数据的时候都进行了gzip压缩, 这就导致sub_filter无法处理gzip数据最后替换失败了...

解决方案
既然gzip无法替换, 那解压缩后再替换不就好了吗?

server
{
    listen 80;
    listen 443 ssl http2;
    server_name raw.githubusercontent.cc;
    index index.php index.html index.htm default.php default.htm default.html;
    root /www/wwwroot/raw.githubusercontent.cc;

    ssl_certificate    /www/server/panel/vhost/cert/raw.githubusercontent.cc/fullchain.pem;
    ssl_certificate_key    /www/server/panel/vhost/cert/raw.githubusercontent.cc/privkey.pem;
    ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
    ssl_ciphers EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
    add_header Strict-Transport-Security "max-age=31536000";
    error_page 497  https://$host$request_uri;

    location /go/ {
        # 负责解压缩内容
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header Host raw.githubusercontent.com; #目标域名
        proxy_redirect off;
        proxy_http_version 1.1;
        proxy_buffering off;
        proxy_pass https://raw.githubusercontent.com/; #目标域名
        proxy_set_header Accept-Encoding 'gzip';
        gunzip on;
    }

    location / {
        proxy_pass http://127.0.0.1/go/; #多走一次转发, 让/go先解压缩gzip
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header Host raw.githubusercontent.cc; #自己的域名
        proxy_redirect off;
        proxy_http_version 1.1;
        proxy_buffering off;

        proxy_set_header Accept-Encoding '';#清除编码

        gzip off;
        sub_filter_types *; #替换所有类型
        sub_filter '//github.com' '//github.xiaoc.cn'; #替换内容
        sub_filter '//raw.githubusercontent.com' '//raw.githubusercontent.cc'; #替换内容
        sub_filter_once off; #所有匹配到的都替换
    }

    access_log  /www/wwwlogs/raw.githubusercontent.cc.log;
    error_log  /www/wwwlogs/raw.githubusercontent.cc.error.log;
}