有没有一种方法可以强制XMLHttpRequest使用HTTP/1.1? [英] Is there a way to force an XMLHttpRequest to use HTTP/1.1?

问题描述

我有一个同时支持HTTP/1.1和HTTP2的服务器端点.为了进行测试，我想尝试同时使用HTTP/1.1和HTTP2连接从端点下载内容.

I have a server endpoint that supports both HTTP/1.1 and HTTP2. For testing purposes, I want to try downloading content from the endpoint with both HTTP/1.1 and HTTP2 connections, possibly at the same time.

当我使用XMLHttpRequest从端点请求数据时，它会自动使用HTTP2，而无需包含Connection: Upgrade标头.

When I request data from the endpoint with an XMLHttpRequest, it automatically uses HTTP2, without me including the Connection: Upgrade header.

是否有一种方法可以强制XMLHttpRequest对基础TCP连接使用HTTP/1.1?那么其他协议(例如Quic或SPDY)呢?

Is there a way to force an XMLHttpRequest to use HTTP/1.1 for the underlying TCP connection? What about other protocols, such as Quic or SPDY?

推荐答案

否.

来自雷米·勒博的评论:

No.

From Remy Lebeau's comment:

浏览器决定要使用哪个协议作为XmlHttpRequest对象的实现细节.您不能从脚本内部强制执行特定选择.

The browser decides which protocol it wants to use as an implementation detail of the XmlHttpRequest object. You can't force a particular choice from inside your script.

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