这是chrome取消请求的另一个例子，我刚刚遇到过，上面的答案中没有提到。

简单地说 我的android手机上的自签名证书不受信任。

细节 我们正处于开发/调试阶段。url指向自签名主机。代码是这样的:

location.href = 'https://some.host.com/some/path'

Chrome只是默默地取消了请求，没有给像我这样的web开发新手留下任何线索来解决这个问题。一旦我使用android手机下载并安装了证书，问题就消失了。

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。

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

在我的情况下，问题的原因是另一个。

我的应用程序坐在代理后面，Chrome请求被发送与If-Modified-Since HTTP头。当这个头文件出现时，预期的行为是:

只有在给定日期后最后一次修改时，服务器才会以200状态发送回所请求的资源。如果请求此后未被修改，则响应将是一个没有任何正文的304;

代理没有满足这一期望，响应一个304状态代码，但一个非空的主体，从而导致请求被取消。

在修复代理行为后，请求就像一个魅力。

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。

当我在样式表中嵌入web字体时，我已经嵌入了所有类型的字体以及woff, woff2, ttf。最近我注意到Chrome取消请求ttf和woff时，woff2是存在的。我现在使用Chrome版本66.0.3359.181，但我不确定Chrome什么时候开始取消额外的字体类型。