CDN is not reachable when using only ipv6

Is it an issue related to Adaptive Cards?

No

Is this an accessibility issue?

No

What version of Web Chat are you using?

Latest production

Which distribution are you using Web Chat from?

Bundle (webchat.js)

Which hosting environment does this issue primarily affect?

Web apps

Which browsers and platforms do the issue happened?

Browser: Edge (latest), Browser: Chrome (latest), Browser: Firefox (latest)

Which area does this issue affect?

Protocol or service

What is the public URL for the website?

No response

Please describe the bug

when a customer is using only IPV6, the CDN for webchat is not reachable

https://cdn.botframework.com/botframework-webchat/latest/webchat.js

Do you see any errors in console log?

No response

How to reproduce the issue?

just disable IPV4 and ensure you are using only IPV6, then try to access to the CDN

What do you expect?

the cdn to be reachable...

What actually happened?

CDN is not reachable , therefore the JS is not reachable

Do you have any screenshots or recordings to repro the issue?

https://cdn.botframework.com/botframework-webchat/latest/webchat.js

Adaptive Card JSON

No response

Additional context

No response

Start by reproducing the failure with IPv4 disabled and inspect https://cdn.botframework.com/botframework-webchat/latest/webchat.js from an IPv6-only connection. Check the CDN endpoint and its IPv6 availability; done means the CDN and JavaScript bundle are reachable over IPv6 in the listed browsers.