abp.ajax fails silently when jqXHR.status === 0

[hillin]

If I understand correctly, abp.ajax fails silently and leaves a hanging promise when jqXHR.status === 0. According to the comment in the abovementioned code, it is expected that the request is aborted in such case. However,

• jqXHR.status === 0 can occur in other situations, such as the host is down, or CORS preflight has been rejected. The caller is entitled to know this;
• It's generally not a good idea to make a promise hanging.

Is it the code was supposed to be like this (which is still not good enough IMO as it still hangs the promise in certain scenarios)?

if(jqXHR.status === 0 && jqXHR.statusText === 'abort')
//                    ↑ && instead of ||

[realLiangshiwei]

I think there is no problem because you can see the error in the console tab. This is consistent with the default behavior

[hillin]

But it doesn't give the caller a chance to handle the error

[realLiangshiwei]

You are right, we should consider allowing the developer to handle the error.