I am getting a HTTP 522 error response for http://www.springframework.org/dtd/spring-beans.dtd. Since this is referenced in my application xml config, it is preventing the server from starting with the following error:

org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from ServletContext resource [/WEB-INF/spring/application-daos.xml]; nested exception is java.io.IOException: Server returned HTTP response code: 522 for URL: http://www.springframework.org/dtd/spring-beans.dtd

The strange thing is it works in other locations (AWS EC2 server) and for devs in other locations. I am located in Los Angeles, CA.

curl -v http://www.springframework.org/dtd/spring-beans.dtd
* Host www.springframework.org:80 was resolved.
* IPv6: (none)
* IPv4: 104.18.36.96, 172.64.151.160
*   Trying 104.18.36.96:80...
* Connected to www.springframework.org (104.18.36.96) port 80
> GET /dtd/spring-beans.dtd HTTP/1.1
> Host: www.springframework.org
> User-Agent: curl/8.7.1
> Accept: */*
> 
* Request completely sent off
< HTTP/1.1 522 
< Date: Tue, 08 Jul 2025 22:20:26 GMT
< Content-Type: text/plain; charset=UTF-8
< Content-Length: 15
< Connection: keep-alive
< X-Frame-Options: SAMEORIGIN
< Referrer-Policy: same-origin
< Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
< Expires: Thu, 01 Jan 1970 00:00:01 GMT
< Server: cloudflare
< CF-RAY: 95c2f78d78de341c-LAX
< 
* Connection #0 to host www.springframework.org left intact
error code: 522%

another failed request from a different network in Los Angeles

curl -v http://www.springframework.org/dtd/spring-beans.dtd
* Host www.springframework.org:80 was resolved.
* IPv6: 2606:4700:4400::6812:2460, 2606:4700:4400::ac40:97a0
* IPv4: 104.18.36.96, 172.64.151.160
*   Trying [2606:4700:4400::6812:2460]:80...
* Connected to www.springframework.org (2606:4700:4400::6812:2460) port 80
> GET /dtd/spring-beans.dtd HTTP/1.1
> Host: www.springframework.org
> User-Agent: curl/8.7.1
> Accept: */*
> 
* Request completely sent off
< HTTP/1.1 522 
< Date: Wed, 09 Jul 2025 00:32:12 GMT
< Content-Type: text/plain; charset=UTF-8
< Content-Length: 15
< Connection: keep-alive
< X-Frame-Options: SAMEORIGIN
< Referrer-Policy: same-origin
< Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
< Expires: Thu, 01 Jan 1970 00:00:01 GMT
< Server: cloudflare
< CF-RAY: 95c3b8929956103d-LAX
< 
* Connection #0 to host www.springframework.org left intact
error code: 522%