也许我错了，但据我所知，Access-Control-Allow-Origin有一个“origin-list”作为参数。

根据定义，origin-list为:

origin            = "origin" ":" 1*WSP [ "null" / origin-list ]
origin-list       = serialized-origin *( 1*WSP serialized-origin )
serialized-origin = scheme "://" host [ ":" port ]
                  ; <scheme>, <host>, <port> productions from RFC3986

由此，我认为不同的起源是被承认的，并且应该被空间分隔开。

我有https://stackoverflow.com/a/7454204/13779574这段代码工作得很好，但当用户进入该页面时给出一个错误。 我用这段代码解决了这个问题。

if (isset($_SERVER['HTTP_ORIGIN'])) {
   $http_origin = $_SERVER['HTTP_ORIGIN'];
   if ($http_origin == "http://localhost:3000" || $http_origin == "http://api.loc/"){  
      header("Access-Control-Allow-Origin: $http_origin");
   }
}

如果你使用字体有困难，可以使用:

<FilesMatch "\.(ttf|ttc|otf|eot|woff)$">
    <IfModule mod_headers>
        Header set Access-Control-Allow-Origin "*"
    </IfModule>
</FilesMatch>

匹配子域的PHP代码示例。

if( preg_match("/http:\/\/(.*?)\.yourdomain.example/", $_SERVER['HTTP_ORIGIN'], $matches )) {
        $theMatch = $matches[0];
        header('Access-Control-Allow-Origin: ' . $theMatch);
}

Django中还有一个答案。要让一个视图允许来自多个域的CORS，以下是我的代码:

def my_view(request):
    if 'HTTP_ORIGIN' in request.META.keys() and request.META['HTTP_ORIGIN'] in ['http://allowed-unsecure-domain.com', 'https://allowed-secure-domain.com', ...]:
        response = my_view_response() # Create your desired response data: JsonResponse, HttpResponse...
        # Then add CORS headers for access from delivery
        response["Access-Control-Allow-Origin"] = request.META['HTTP_ORIGIN']
        response["Access-Control-Allow-Methods"] = "GET" # "GET, POST, PUT, DELETE, OPTIONS, HEAD"
        response["Access-Control-Max-Age"] = "1000"  
        response["Access-Control-Allow-Headers"] = "*"  
        return response

我们也可以在全局中设置这个。asax文件用于Asp.net应用程序。

protected void Application_BeginRequest(object sender, EventArgs e)
    {

    // enable CORS
    HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "https://www.youtube.com");

    }