Tag esi doesn't work after upgrade version

[aliaksandr_hvoz]

Hello

Could you please help with a question?

There is a component with tag <esi:include src="${model.url}"> and it stopped working in the new version of AEM (6.5.6). After updating from 6.3 to 6.5.6, I began to receive an error 500. Dispatcher configuration files didn't change. Could you tell me what could be the reason?

model.url - valid, I'm getting URL in the component.

If more information is required I will add.

Thanks in advance.

[SureshDhulipudi]

Did you check SDI Sling Dynamic  changes in AEM 6.3 vs AEM 6.5

CDN caching strategy and How your CDN ESI processor process the tag and request to AEM Server.

[aliaksandr_hvoz]

We are using Nginx + varnish. Configuration didn't change after upgrade.