从HTTP请求获取自定义响应头

Question

I am fully aware this question has been posted multiple times in the past, but I can't figure it out how to fix my issue. I do a HEAD request using AJAX and get some data back in the header response, in a custom field.

What I'm trying to do is:

jqXHR.getResponseHeader("Metadata"); 

Metadata is the custom field in the header. However, this always comes back as null, even though I see it in Firebug. The response is a JSON.

What can I do to fix this?

Answer 1

addHeader("Access-Control-Expose-Headers", "Custom-Header"); 

如果有人遇到问题，这是Java中的修复程序。