Precendence over gzip about ngx_brotli HOT 18 CLOSED

Derp. So it wasn't this module. The output of the bro command to a *.br file doesn't have read permissions. Sorry about that--I saw the files in the directory and assumed the command would transfer permissions.

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I cannot replicate this (neither with vanilla nginx-1.9.7 nor with ngx_openresty-1.9.7.1).

What website are you testing this with? Do you have any proxies or CDN in between?

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I was testing my personal page placeholder @ https://toast.al/ . There's no proxies/CDN between my content and the user. According to my config, the HTML and CSS should be using brotli. I also have gzip and brotli static both enabled.. with %f.gz & %f.br files in the directory.

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Actually, here's the relevant Nginx config lines:

    ...

    gzip on;
    gzip_disable "msie6";
    gzip_vary on;
    gzip_proxied any;
    gzip_static on;

    brotli on;
    brotli_types text/html text/css text/javascript application/javascript application/json image/svg+xml;
    brotli_static on;

    ...

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If it helps, here's my source for the site as well as my build steps for the server in the README: https://bitbucket.org/toastal/toast.al-social-page/src

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Are you sure that your web application doesn't send compressed (read: gzipped) responses?

ngx_brotli doesn't re-compress already compressed responses, so if it's gzipped before reaching nginx, it will be passed to the client as such.

from ngx_brotli.

I'm not 100% sure what you're asking about compressed responses and apps...

The two files are static, an index.html file and a main.css file. There's no app being proxied to or anything like that. Both files however do have a precompressed version for gzip_static and brotli_static.

The dist directory being served from looks like this currently:

Σ /v/w/t/dist (master=) tree .
.
├── css
│   ├── main.css
│   ├── main.css.br
│   └── main.css.gz
├── fonts
│   └── fantasque-sans-mono
│       ├── FantasqueSansMono-BoldItalic.woff
│       ├── FantasqueSansMono-BoldItalic.woff2
│       ├── FantasqueSansMono-Bold.woff
│       ├── FantasqueSansMono-Bold.woff2
│       ├── FantasqueSansMono-Italic.woff
│       ├── FantasqueSansMono-Italic.woff2
│       ├── FantasqueSansMono-Regular.woff
│       └── FantasqueSansMono-Regular.woff2
├── index.html
├── index.html.br
├── index.html.gz
└── robots.txt

3 directories, 15 files

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Well, I don't know your nginx.conf (can you share it, please? Ideally, just minimal version that you're able to replicate this with), so I'm trying to guess what might be the source of this weird behavior.

Brotli takes precedence over gzip in all my tests...

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worker_processes  4;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    gzip on;
    gzip_disable "msie6";
    gzip_vary on;
    gzip_proxied any;
    gzip_static on;

    brotli on;
    brotli_types text/html text/css text/javascript application/javascript application/json image/svg+xml;
    brotli_static on;

    server_tokens off;

    server {
        listen       80;
        server_name  toast.al;
        rewrite ^ https://$server_name$request_uri? permanent;
    }


    # HTTPS server

    server {
        listen       443 default_server ssl http2;
        server_name  toast.al;

        add_header X-Frame-Options SAMEORIGIN;
        add_header X-XSS-Protection "1; mode=block";
        add_header X-Content-Type-Options nosniff;
        add_header Strict-Transport-Security "max-age=31536000; includeSubdomains";

        ... ssl stuff ...

        location / {
            root  /var/www/toast.al-social-page/dist;
            index index.html index.htm;
        }
    }

    server {
       listen 80;
       listen 443 ssl http2;
       server_name www.toast.al;
       return 301  $scheme://toast.al$request_uri;
    }

}

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I still cannot replicate this issue, even when using your config...

Could you give me the git commit of ngx_brotli that you've checked out?

Also, could you provide a debug log of the gzipped request?

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Ho to set Accept-Encoding: br ?

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If you're asking "how" to set it from the browser, only the Firefox 44+ and latest dev Chromium (behind a flag) support brotli. You'll need one of the supported browsers and they will add the accepted encoding by default.

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Okay I updated Firefox to version 44 and I have this : Accept-Encoding :"gzip, deflate, br"
Is this the good order ?

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Order shouldn't matter. But if you're interested, it can be modified at about:config rule network.http.accept-encoding.secure.

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Thanks. I do I know if my web server is correctly configured with Brotli ?

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How do you know? You can inspect a resource from Firefox's Network tab that should have the encoding. In the response headers of that resource you should see Content-Encoding: "br".

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I don't have it :/

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Mine's working fine.

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