ESI renderer assumes current application is the target of the include #39130
Description
Symfony version(s) affected: 5.1.8
Description
ESI rendering sounds great in theory: I can work without an edge cache in development because Symfony will resolve the include by itself. However, calling out to an external resource does not work.
How to reproduce
{{ render_esi('https://example.com/foo') }} will error with:
An exception has been thrown during the rendering of a template ("No route found for "GET /foo"").
Despite the fact that example.com has nothing to do with our application, it ignores the hostname and just assumes the path can be found within our application.