nginx proxy_pass 404 错误，不明白为什么

Question

我正在尝试将所有对/api 的调用传递给我的网络服务，但使用以下配置我不断收到 404。按预期调用/返回 index.html。有谁知道为什么？

upstream backend{
    server localhost:8080;
}

 server {

    location /api {
        proxy_pass http://backend;
    }

    location / {
        root /html/dir;
    }
}

更多信息在这里

adept@HogWarts:/etc/nginx/sites-available$ curl -i localhost/api/authentication/check/user/email
HTTP/1.1 404 Not Found
Server: nginx/1.2.1
Date: Mon, 22 Apr 2013 22:49:03 GMT
Content-Length: 0
Connection: keep-alive

adept@HogWarts:/etc/nginx/sites-available$ curl -i localhost:8080/authentication/check/user/email
HTTP/1.1 200 OK
Content-Type: application/json
Date: Mon, 22 Apr 2013 22:49:20 GMT
Transfer-Encoding: chunked

{"user":["false"],"emailAddress":["false"]}

Answer 1

这个

location /api {
    proxy_pass http://backend;
}

必须是这个

location /api/ {
    proxy_pass http://backend/;
}