deflate/gzip 压缩无效

Question

我有经典的共享主机 (apache)。在 phpinfo() 中，它都已启用。

gzip compression enabled

我试过用这个：

AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript

还有这个：

<IfModule mod_deflate.c>
    AddOutputFilterByType DEFLATE application/x-javascript application/javascript text/javascript text/css text/html text/xml
</IfModule>

但这对我不起作用。响应 headers 是：

HTTP/1.1 200 OK
Date: Mon, 03 Aug 2015 15:29:08 GMT
Server: Apache
Last-Modified: Mon, 03 Aug 2015 14:28:34 GMT
ETag: "64325f33-1ebd5-51c68fc093cbc"
Accept-Ranges: bytes
Cache-Control: max-age=604800
Expires: Mon, 10 Aug 2015 15:29:08 GMT
Vary: Accept-Encoding
Keep-Alive: timeout=5, max=99
Connection: Keep-Alive
Content-Type: application/javascript
Transfer-Encoding: chunked

所以它不见了 Content-Encoding gzip。如果我运行我的脚本使用 this 它会显示

It's GZIP Enabled.72.9% Was saved by compressing this page with GZIP.

但在我的代码中它不起作用（没有压缩）。我应该do/try做什么？

Answer 1

我认为压缩工作正常。服务器未按预期响应，因为 according RFC, you need to specify that you want to have compressed response by adding Accept-Encoding header with one of supported content-codings 您的请求。

Accept-Encoding: gzip, deflate

deflate/gzip 压缩无效

deflate/gzip compression not working

php

compression

.htaccess

gzip