javascript - AJAX 请求在 HTTP_STREAM_PARSER_READ_HEADERS 之后被取消

Question

我的 XMLHttpRequests 被取消了，但似乎仍然可以正常工作(数据到达服务器)。另一个问题建议出于某种原因查看 chrome 事件，它似乎在 HTTP_STREAM_PARSER_READ_HEADERS

之后立即取消

这是请求事件，以及关于可能导致此问题的原因的见解，或者我可以尝试进一步的故障排除？:

t=1125 [st= 0] +REQUEST_ALIVE [dt=250]
t=1125 [st= 0] URL_REQUEST_DELEGATE [dt=0]
t=1125 [st= 0] +URL_REQUEST_START_JOB [dt=250]
--> load_flags = 33024 (MAYBE_USER_GESTURE | VERIFY_EV_CERT)
--> method = "PUT"
--> priority = "LOW"
--> upload_id = "0"
--> url = [Redacted]
t=1125 [st= 0] +URL_REQUEST_DELEGATE [dt=1]
t=1125 [st= 0] DELEGATE_INFO [dt=1]
--> delegate_info = "extension Tampermonkey"
t=1126 [st= 1] -URL_REQUEST_DELEGATE
t=1126 [st= 1] HTTP_CACHE_GET_BACKEND [dt=0]
t=1126 [st= 1] HTTP_CACHE_OPEN_ENTRY [dt=0]
t=1126 [st= 1] HTTP_CACHE_ADD_TO_ENTRY [dt=0]
t=1126 [st= 1] HTTP_CACHE_READ_INFO [dt=0]
t=1126 [st= 1] URL_REQUEST_DELEGATE [dt=0]
t=1126 [st= 1] +HTTP_STREAM_REQUEST [dt=198]
t=1126 [st= 1] HTTP_STREAM_REQUEST_STARTED_JOB
--> source_dependency = 82675 (HTTP_STREAM_JOB)
t=1324 [st=199] HTTP_STREAM_REQUEST_BOUND_TO_JOB
--> source_dependency = 82675 (HTTP_STREAM_JOB)
t=1324 [st=199] -HTTP_STREAM_REQUEST
t=1324 [st=199] +HTTP_TRANSACTION_SEND_REQUEST [dt=0]
t=1324 [st=199] HTTP_TRANSACTION_SEND_REQUEST_HEADERS
--> PUT /users/[Redacted] HTTP/1.1
Host: [Redacted]
Connection: keep-alive
Content-Length: 4545
X-NewRelic-ID: UwUDUlFADQEGUlFb
Origin: [Redacted]
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.110 Safari/537.36
Content-Type: application/json
Accept: /
X-Requested-With: XMLHttpRequest
Referer: [Redacted]
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8
Cookie: [1850 bytes were stripped]
t=1324 [st=199] HTTP_TRANSACTION_SEND_REQUEST_BODY
--> did_merge = false
--> is_chunked = false
--> length = 4545
t=1324 [st=199] -HTTP_TRANSACTION_SEND_REQUEST
t=1324 [st=199] +HTTP_TRANSACTION_READ_HEADERS [dt=51]
t=1324 [st=199] +HTTP_STREAM_PARSER_READ_HEADERS [dt=51]
t=1374 [st=249] CANCELLED
t=1375 [st=250] -URL_REQUEST_START_JOB
--> net_error = -3 (ERR_ABORTED)
t=1375 [st=250] URL_REQUEST_DELEGATE [dt=0]
t=1375 [st=250] -REQUEST_ALIVE

Answer 1

我在 chrome://net-internals/#events 中遇到了同样的错误。就我而言，AJAX 请求采用以下形式: $.ajax({ ... timeout: 3000//在我的例子中动态出现 ...}); 因此，所有超过 3000 毫秒的请求都会被自动取消。

现在适合您的解决方案取决于您的应用程序是要增加客户端的超时还是改善服务器端的服务。