Ajax请求:拒绝设置不安全的标头 [英] Ajax request: Refused to set unsafe header

问题描述

我正在尝试使用Google Text-To-Speech播放音频.因此，我需要使用正确设置的 Referer 和 User-Agent 向他们的端点发布请求.该调用将返回我可以播放的MP3.

I am trying to play an audio using Google Text-To-Speech. Therefore I need to post a request to their endpoint with the Referer and the User-Agent properly set. This call should return an MP3 that I can play.

但是，我得到拒绝设置不安全的标头错误.这是我的代码.我该怎么办?

However, I get Refused to set unsafe header errors. This is my code. How can I do this?

          $.ajax({
            url: 'http://translate.google.com/translate_tts?ie=UTF-8&q=Hello&tl=en&client=t',
            beforeSend: function(xhr) {
                 xhr.setRequestHeader("Referer", "http://translate.google.com/");
                 xhr.setRequestHeader("User-Agent", "stagefright/1.2 (Linux;Android 5.0)");
            }, success: function(data){
                el.mp3 = new Audio(data);
                el.mp3.play();
            }
          });

推荐答案

您不能.这是不可能的.

You can't. It is impossible.

规范要求浏览器中止 setRequestHeader 方法，如果您尝试设置这些标头.

The specification requires that the browser abort the setRequestHeader method if you try to set those headers.

如果您需要设置这些标头，则需要从服务器而不是访问者的浏览器发出请求.

If you need to set those headers then you'll need to make the request from your server and not your visitor's browser.

(也就是说，如果您需要欺骗用户代理或引荐来源，那么您可能会以服务所有者不希望的方式尝试使用该服务，因此您应该尊重并停止尝试).

(That said, if you need to be deceptive about the user agent or referer then you are probably trying to use the service in a fashion that the owner of it does not want, so you should respect that and stop trying).

还要检查"获取禁止的标题名称".

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