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Spyros Lambrinidis
Asked: 2015-03-13 03:46:35 +0800 CST

nginx if statement inside location returns 404

  • 772

The following block

location / {
    if ($http_origin ~* (https?://[^/]*\.example\.com(:[0-9]+)?)) {
        add_header 'Access-Control-Allow-Origin' "$http_origin";
    }
    try_files $uri $uri/ /index.php?$args;
}

… causes a 404 as the above code never reaches the try_files directive, so:

  1. Is this related to the IfIsEvil of nginx?

  2. If it is, then is there some other way to test the http_origin by not using an if statement?

I have tried this with nginx > 1.4 (1.4.6, 1.7, 1.7.8).

nginx

1 Answers

  1. I would use map:

    map $http_origin $cors_header {
    default "";
    "~^https?://[^/]+\.example\.com(:[0-9]+)?$" "$http_origin";
}

server {
    ...
    location / {
        add_header Access-Control-Allow-Origin $cors_header;
        try_files $uri $uri/ /index.php;
    }
    ...
 }
    • 21