gzip没有在nginx +乘客中工作

Question

I have an nginx + passenger installed on Amazon Linux EC2 server, running a Rails application. The application yields JSON responses.

The JSON response is rendered with length header:

# test_controller.rb
# result contains a large 400k JSON string
headers["Content-Length"] = result.size.to_s
render :json => result

I tried enabling gzip, but the response is still not compressed. I checked it with GIDZipTest .

# nginx.conf
gzip on;
gzip_http_version 1.1;
gzip_comp_level 1;
gzip_proxied any;
gzip_vary on;
gzip_min_length 500;
gzip_types application/x-javascript  application/json;

Answer 1

我有它正常工作，尝试添加（文本/ javascript）

gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

Answer 2

gzip_types works! In my case, application/javascript also required for Ruby on Rails

gzip_types text/plain text/css application/javascript application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

Answer 3

Mystery solved. The php script is not reliable.

This is reliable:

wget --header="accept-encoding: gzip" URL

Gets the compressed version.

Testing with Chrome and Charles sniffer convinced me that everything worked fine.