我也遇到过同样的问题，在我们的代码深处，我们有这样的伪代码:

创建iframe 加载iframe提交一个表单 2秒后，移除iframe

thus, when the server takes more than 2 seconds to respond the iframe to which the server was writing the response to, was removed, but the response was still to be written , but there was no iframe to write , thus chrome cancelled the request, thus to avoid this I made sure that the iframe is removed only after the response is over, or you can change the target to "_blank". Thus one of the reason is: when the resource(iframe in my case) that you are writing something in, is removed or deleted before you stop writing to it, the request will be cancelled

这是发生在我身上的事情:服务器为302重定向返回了一个格式错误的“Location”头。 当然，Chrome没有告诉我这一点。我在firefox中打开了这个页面，并立即发现了问题。 有多种工具真好:)

以我为例，我发现它是jquery的全局超时设置，一个jquery插件设置全局超时为500ms，这样当请求超过500ms时，chrome就会取消请求。

当我通过JavaScript重定向时，我在Chrome中得到了这个错误:

<script>
    window.location.href = "devhost:88/somepage";
</script>

如你所见，我忘记了'http://'.在我添加它之后，它起作用了。

当我用$调用a. js文件时，也发生了同样的情况。ajax，并发出一个ajax请求，我所做的是正常调用。

如果您使用axios，它可以帮助您

// change timeout delay: Instance.defaults.timeout = 2500;

https://github.com/axios/axios#config-order-of-precedence