# ChatKit no longer working

**URL:** <https://community.openai.com/t/chatkit-no-longer-working/1363377>\
**Category:** Bugs\
**Tags:** chatkit\
**Created:** [October 22, 2025, 12:34am UTC](https://community.openai.com/t/chatkit-no-longer-working/1363377 "2025-10-22T00:34:46Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![CFO-X](https://sea2.discourse-cdn.com/openai1/user_avatar/community.openai.com/cfo-x/32/692398_2.png) [@CFO-X](https://community.openai.com/u/CFO-X)\
**Post date:** [October 22, 2025, 12:34am UTC](https://community.openai.com/t/chatkit-no-longer-working/1363377/1 "2025-10-22T00:34:46Z")

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My ChatKit stopped working out of nowhere today.

- The only log I saw in the console is Failed to execute ‘postMessage’ on ‘DOMWindow’: The target origin provided (…) does not match the recipient window’s origin (‘null’).
- I can’t upload the link here but it was sentinel . openai . com
- Both localhost and deployed version stopped working.
- I checked against the openai-chatkit-starter-app and it’s not working as well.
- The AgentBuilder workflow is still working in preview mode.

Feel like there has been a non-backward compatible change here. Anyone running into the same issue?

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**Author:** ![8coins](https://avatars.discourse-cdn.com/v4/letter/8/b38774/32.png) [@8coins](https://community.openai.com/u/8coins)\
**Post date:** [October 22, 2025, 12:50am UTC](https://community.openai.com/t/chatkit-no-longer-working/1363377/2 "2025-10-22T00:50:42Z")

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Same, stopped working for last 24 hrs or so.

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**Author:** ![kcastaneda](https://sea2.discourse-cdn.com/openai1/user_avatar/community.openai.com/kcastaneda/32/512461_2.png) [@kcastaneda](https://community.openai.com/u/kcastaneda)\
**Post date:** [October 22, 2025, 1:05am UTC](https://community.openai.com/t/chatkit-no-longer-working/1363377/3 "2025-10-22T01:05:32Z")

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same here, started some time today. reported to support

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<div class="post-metadata">

**Author:** ![kcastaneda](https://sea2.discourse-cdn.com/openai1/user_avatar/community.openai.com/kcastaneda/32/512461_2.png) [@kcastaneda](https://community.openai.com/u/kcastaneda)\
**Post date:** [October 22, 2025, 5:14am UTC](https://community.openai.com/t/chatkit-no-longer-working/1363377/4 "2025-10-22T05:14:25Z")

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This has been resolved now! Support reached back out to confirm a fix was pushed.

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<div class="post-metadata">

**Author:** ![VeitB](https://sea2.discourse-cdn.com/openai1/user_avatar/community.openai.com/veitb/32/712987_2.png) [@VeitB](https://community.openai.com/u/VeitB)\
**Post date:** [October 24, 2025, 5:15am UTC](https://community.openai.com/t/chatkit-no-longer-working/1363377/5 "2025-10-24T05:15:01Z")

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