I just did a minor change in the privacy policy but when I submitted the edit, it would not complete saving (the saving wheel kept spinning and spinning). While I was waiting, I went to the TOS (in a new browser tab) to do a change there too. After saving that edit without problems, I went back to t…

I am unable to repro this error on latest Discourse version.

For what it’s worth, I just had this same issue with a recent Discourse version (commit c10941b, basically the stable branch from 2019-02-17, not a release). I was able to reproduce it a few times, but then not anymore, and it’s the first time ever that I had this issue. So very much an edge case … …

Sorry @tanius Akismet thought your post was spam for some reason and deleted it, I just went ahead and undeleted it. @techAPJ can you re-test given this info?

“Cannot read field jqXHR” is coming from our custom error handling code around failed AJAX calls.

No, not persisting … haven’t seen the error in the last year. But it was very much an edge case to begin with, and not clearly reproducible, so I’d not take this as proof of absence now … BTW, there is one other part of failed post-saving that could be improved. Namely, when saving a post or post e…

We need repro to do anything. Have you messed with the network tab in Chrome to switch to an artificially unreliable network? That might work for a repro?

This error showed for me when I was doing the following. All done in a plugin. I was adding a Validator to the Post class… the content of it does not matter but i will put it for the sake of the reply. frozen_string_literal: true class MainPostValidator < ActiveModel::Validator def validate(rec…

Cannot read property 'jqXHR' of undefined

Product Support

codinghorror (Jeff Atwood) 4월 29, 2020, 3:23오후 10

무엇을 하려면 재현이 필요합니다. Chrome의 네트워크 탭을 조작해서 인위적으로 불안정한 네트워크로 전환해 보셨나요? 그러면 재현이 가능할지도 모르겠네요?

글		댓글	조회수
Can't edit post title, javascript errors Bug	2	234	9월 20, 2025
TypeError: can't access property 0, i.jqXHR.responseJSON.errors is undefined when viewing post edit history Product Support	1	129	6월 22, 2026
On edit: Internal Server Error due to plugin Product Support	2	1555	12월 5, 2018
I get "500 error" error while editing post Self-hosting	15	1211	3월 17, 2026
Unable to save wiki update Product Support wiki-posts	5	1013	3월 10, 2020

Cannot read property 'jqXHR' of undefined

Related topics