Help for chrome XHR request failure with status == 0

[Di Pan]

Hi, Folks:

I have a question on xhr request failed with xhr.status == 0 on Chrome. I reach out to this mailing list and hope it is the right place to ask this question.

In Hangouts Meet, we saw a certain sample of users' XHR requests failed with xhr.status == 0 on Chrome. Based on my understanding, the XHR request actually fails to be sent out in Chrome when xhr.status = 0. The xhrio.lastErrorCode is set as goog.net.ErrorCode.HTTP_ERROR (https://cs.corp.google.com/piper///depot/google3/javascript/closure/net/xhrio.js?rcl=155141300&l=871)

But we are not clear what's the root cause of this error and how to mitigate it.

I wonder did you guys hear the same problem reported from other teams, or do you have any idea 

about the potential cause? 

I really appreciate any suggestions and insights about this issue. Thank you so much!

Di

[PhistucK]

I believe it means that there was either a network, security (HTTPS tried to reach HTTP, or HTTPS with a not-previously-approved SSL error) or DNS error. Maybe the network was temporarily down.

☆PhistucK

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[Takeshi Yoshino]

On Wed, Jun 14, 2017 at 3:48 PM, PhistucK <phis...@gmail.com> wrote:

I believe it means that there was either a network, security (HTTPS tried to reach HTTP, or HTTPS with a not-previously-approved SSL error) or DNS error. Maybe the network was temporarily down.

As PhistucK said, it can be 0 for various reasons. You might be able to see some log about the root cause at the console.

 

☆PhistucK

On Wed, Jun 14, 2017 at 8:19 AM, 'Di Pan' via net-dev <net...@chromium.org> wrote:

Hi, Folks:

I have a question on xhr request failed with xhr.status == 0 on Chrome. I reach out to this mailing list and hope it is the right place to ask this question.

net...@chromium.org is a public mailing list. Let me do follow up about the code internal to Google (though it's part of the closure library which is open sourced) at the internal mailing list.

 

In Hangouts Meet, we saw a certain sample of users' XHR requests failed with xhr.status == 0 on Chrome. Based on my understanding, the XHR request actually fails to be sent out in Chrome when xhr.status = 0. The xhrio.lastErrorCode is set as goog.net.ErrorCode.HTTP_ERROR (https://cs.corp.google.com/piper///depot/google3/javascript/closure/net/xhrio.js?rcl=155141300&l=871)

But we are not clear what's the root cause of this error and how to mitigate it.

I wonder did you guys hear the same problem reported from other teams, or do you have any idea 

about the potential cause? 

I really appreciate any suggestions and insights about this issue. Thank you so much!

Di

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