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nginx HTTP / 2模块是否支持Server Push？

[英]Does the nginx HTTP/2 module support Server Push?

原文 2015-11-05 05:17:50 2 4 ssl/ nginx/ server-push/ http2

I'm planning to upgrade my nginx to 1.9.6 which supports HTTP/2. 我打算将我的nginx升级到支持HTTP / 2的1.9.6。

Have nginx implemented HTTP/2 server push? 有nginx实现HTTP / 2服务器推送吗？

ref: https://ma.ttias.be/service-side-push-http2-nghttp2/ 参考： https ： //ma.ttias.be/service-side-push-http2-nghttp2/

4 个解决方案

Yes, Nginx supports HTTP/2 server push since version 1.13.9 , released on February 20, 2018. 是的，自2018年2月20日发布的1.13.9版以来，Nginx支持HTTP / 2服务器推送。

The Nginx team pointed out in the original 1.9.5 blog post that it wasn't supported back then. Nginx团队在最初的1.9.5博客文章中指出，当时它不受支持。

Edit: 编辑：

Nginx supports HTTP/2 server push since v1.13.9, released on February 20, 2018. 自2018年2月20日发布的v1.13.9起，Nginx支持HTTP / 2服务器推送。

Older answer: 老答案：

Nginx does not support HTTP/2 server push as of March 2017 (v1.11). 截至2017年3月（v1.11），Nginx不支持HTTP / 2服务器推送。

Owen Garrett at nginx has summarized the reasons as follows: nginx的Owen Garrett总结了如下原因：

it is a non-essential and optional part of http/2 它是http / 2的非必要和可选部分
if the client already has the resource cached, then by pushing it to them you might be unnecessarily wasting bandwidth. 如果客户端已经缓存了资源，那么通过将其推送到它们，您可能会不必要地浪费带宽。
server push spec might change in the future. 服务器推送规范可能在未来发生变化。
Link headers as hints is useful, but usage has been low from web developers. 链接头作为提示很有用，但Web开发人员的使用率很低。
server push has been available as part of SPDY and was not utilized by many web developers. 服务器推送已作为SPDY的一部分提供，并未被许多Web开发人员使用。

Read his original comments here . 在这里阅读他的原始评论。 This table accurately describes the pro's and con's of server hints vs server push. 此表准确描述了服务器提示与服务器推送的关系和配置。

Personally this disappoints me because I think this would be a valuable feature for web developers willing to invest the time to optimize page speeds. 就个人而言，这令我失望，因为我认为这对于愿意投入时间来优化页面速度的Web开发人员来说是一个很有价值的功能。 I also know that some large CDN's like Cloudflare have implemented their own version within nginx to optimize page downloads. 我也知道像Cloudflare这样的大型CDN已经在nginx中实现了自己的版本来优化页面下载。

Support for http/2 server push has been added to nginx as of Feb 8th, 2018: 自2018年2月8日起，nginx已添加对http / 2服务器推送的支持：

https://hg.nginx.org/nginx/rev/641306096f5b https://hg.nginx.org/nginx/rev/641306096f5b

You need to pay for it with an nginx plus subscription https://www.nginx.com/blog/http2-r7/ . 您需要使用nginx plus订阅https://www.nginx.com/blog/http2-r7/来支付费用。

Apache provides it for free Apache免费提供

https://httpd.apache.org/docs/2.4/mod/mod_http2.html#h2push https://httpd.apache.org/docs/2.4/mod/mod_http2.html#h2push