使用send_file设置内容类型

我需要为Apple通用链接发送具有特定内容类型（application/pkcs7-mime）的文件。我使用rails的send_file函数，并添加:type作为参数，但类型始终为text/plain。使用send_file设置内容类型

这里是我的控制器：

class AppleController < ApplicationController 
    def download_app_site_association 
    send_file "#{Rails.root}/public/apple-app-site-association", {:filename => "apple-app-site-association", :type => "application/pkcs7-mime" , :x_sendfile => true} 
    end 
end

我也尝试添加这样的：

send_file "#{Rails.root}/public/apple-app-site-association", :filename => "apple-app-site-association", :type => "application/pkcs7-mime" , :x_sendfile => true

和手动设置它像这样：

response.headers["Content-type"] = "application/pkcs7-mime" 
send_file "#{Rails.root}/public/apple-app-site-association", :filename => "apple-app-site-association", :x_sendfile => true

谁能给我解释一下为什么这不起作用？

来源

2016-03-21 Shrolox