对我来说，“取消”状态是因为文件不存在。奇怪为什么chrome浏览器不显示404。

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

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

我们遇到(取消)状态的另一个地方是在特定的TLS证书错误配置中。如果一个网站(例如https://www.example.com)配置错误，导致证书不包括www。但有效的https://example.com, chrome将取消此请求，并自动重定向到后者的网站。Firefox则不是这样。

当前有效的示例:https://www.pthree.org/

从严格的Angular角度来看:

当你不能在代码层面上正确地中断时，就会发生这种情况。

假设request1出来了，它的响应也是， 在那之后，嵌套的request2也出去了，它的响应也来了，我们直接打破了循环，没有正确地破坏request1的订阅，

在那个时候，它发生了

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。