I had the same issue when updating a record. Inside the save() i was prepping the rawdata taken from the form to match the database format (doing a lot of mapping of enums values, etc), and this intermittently cancels the put request. i resolved it by taking out the data prepping from the save() and creating a dedicated dataPrep() method out of it. I turned this dataPrep into async and await all the memory intensive data conversion. I then return the prepped data to the save() method that i could use in the http put client. I made sure i await on dataPrep() before calling the put method:

等待dataToUpdate =等待dataPrep(); http。把(apiUrl dataToUpdate);

这解决了间歇性取消请求的问题。

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

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

在我的情况下，它开始出现后chrome 76更新。

由于一些问题在我的JS代码，窗口。位置被多次更新，导致取消先前的请求。 虽然这个问题之前就存在，但chrome在更新到版本76后开始取消请求。

请求可能已经被跟踪保护插件阻止了。