Question

我正在尝试将标题添加到我在Sails.js中传输到客户端的图像中。为此，我创建了一个在输出图像文件之前运行的策略。

module.exports = function (req, res, next) {
    res.writeHead(200, {
        "Cache-Control": "private, max-age=200",
        "Expires": "SOME EXPIRY DATE"
    });
    next();
};

我的回复标题已更改，如下所示：

HTTP/1.1 200 OK
X-Powered-By: Sails <sailsjs.org>
Access-Control-Allow-Origin: 
Access-Control-Allow-Credentials: 
Access-Control-Allow-Methods: 
Access-Control-Allow-Headers: 
Cache-Control: private, max-age=200
Expires: Sun Oct 12 2014 23:18:39 GMT
Date: Sat, 11 Oct 2014 17:33:39 GMT
Connection: keep-alive
Transfer-Encoding: chunked

然而，当我再次加载页面时，浏览器似乎再次请求图像。我在这里缺少什么？

Answer 1

将此添加到config / http.js

的底部

module.exports.cache = {
   // The number of seconds to cache files being served from disk
    maxAge: 86400000 // millsec = 24 hours
};

添加响应头后，Sails.js图像不缓存

1 个答案: