perl：不向浏览器返回任何内容

Question

I'm passing a url (from javascript) to a perl script. The perl script gets data back from the URL, processes it and writes a file. That's all working fine.

At this point all I want to return processing to the browser/javascript but I'm struggling to prevent the perl script from returning content to the browser. It just blanks the page.

I suspect it's the content type/header that's causing the issue but can't seem to find a way to inhibit it returning something the browser wants to display.

So far after much hunting I came across

print "Status: 204 No Content\n\n";

Looked promising but I suspect just having the print command is enough to push something back at the browser.

Any pointers appreciated. I can't be the only person that just wants perl to go off and do a job without returning content.

Answer 1

必须对请求做出响应，“ 204 No Content” 将某些内容推回浏览器：没有内容可显示的信息（因此浏览器将继续显示先前的内容）。