# 504 error when deleting topic using CDN

**URL:** https://meta.discourse.org/t/504-error-when-deleting-topic-using-cdn/221730
**Category:** Support
**Created:** [March 23, 2022, 8:38am UTC](https://meta.discourse.org/t/504-error-when-deleting-topic-using-cdn/221730 "2022-03-23T08:38:18Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![daming](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/daming/32/246799_2.png) [@daming](https://meta.discourse.org/u/daming)
#### Post date: [March 23, 2022, 8:38am UTC](https://meta.discourse.org/t/504-error-when-deleting-topic-using-cdn/221730/1 "2022-03-23T08:38:18Z")

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I use Alibaba Cloud CDN for wiki testing, at the end I want to delete the topic, but I can’t delete it, it shows 504 error, I’m not sure if it’s my CDN configuration or the nignx proxy.  
Added: When deleting a subtopic, it shows deleted but the post is still there

 ![delate](https://global.discourse-cdn.com/meta/original/3X/9/c/9c3e966b5ab744439decb2fab6c087cdb31b6666.jpeg)  
 ![截屏2022-03-23 下午4.24.15](https://global.discourse-cdn.com/meta/original/3X/8/c/8cb6b575a0004c117de8ce6493f944e57818fda5.jpeg)  
 ![here](https://global.discourse-cdn.com/meta/original/3X/d/3/d373b4d052cb1a28cc4734403d99bfaf2fa8889c.jpeg)

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### Author: ![pfaffman](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pfaffman/32/120154_2.png) [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [March 23, 2022, 11:12am UTC](https://meta.discourse.org/t/504-error-when-deleting-topic-using-cdn/221730/2 "2022-03-23T11:12:55Z")

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How did you configure the CDN? Are you using the CDN env in your app.yml or is that service in front of the entire site?

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### Author: ![daming](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/daming/32/246799_2.png) [@daming](https://meta.discourse.org/u/daming)
#### Post date: [March 23, 2022, 11:16am UTC](https://meta.discourse.org/t/504-error-when-deleting-topic-using-cdn/221730/3 "2022-03-23T11:16:16Z")

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I used CDN in front of the entire site.

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### Author: ![pfaffman](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/pfaffman/32/120154_2.png) [@pfaffman](https://meta.discourse.org/u/pfaffman)
#### Post date: [March 23, 2022, 11:17am UTC](https://meta.discourse.org/t/504-error-when-deleting-topic-using-cdn/221730/4 "2022-03-23T11:17:55Z")

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That’s likely the issue. I suspect if you turn it off your problem will go away.

The recommend easy to use a cdn is to define the variable in your yml file so the the right things are proxied.

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### Author: ![daming](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/daming/32/246799_2.png) [@daming](https://meta.discourse.org/u/daming)
#### Post date: [March 23, 2022, 11:21am UTC](https://meta.discourse.org/t/504-error-when-deleting-topic-using-cdn/221730/5 "2022-03-23T11:21:04Z")

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## OK, I try now. thanks.

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### Author: ![system](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/system/32/443519_2.png) [@system](https://meta.discourse.org/u/system)
#### Post date: [April 22, 2022, 11:21am UTC](https://meta.discourse.org/t/504-error-when-deleting-topic-using-cdn/221730/6 "2022-04-22T11:21:53Z")

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