Varnish symfony esi: tag remove, but no content

Question

So my problem: I have a big symfony project 2.3, varnish 5. So I want to include some fragment by symfony function render_esi(). After all problem I want to understand why doesn't include any file, even simply test.php. The problem is it's not include any content, but tag esi:include src"..." I don't see. Ok, let's see all configs:

Symfony: config.yml

esi: 
    enabled: true
fragments:
    path: /_fragments 

some.html.twig:

<h2>Here must be content</h2>

{{ render_esi(url('esi_megamenuBanners')) }}
{{ render_esi(controller("OstrovWebBundle:Frontend/Page:megamenuBanners")) }}
<esi:include src="https://mo.loc/test.php">

<h2>end content</h2>

Its a three different ways, which I tried to fire ESI.

Varnish config:

sub vcl_recv {

#Add a Surrogate-Capability header to announce ESI support.
set req.http.Surrogate-Capability = "abc=ESI/1.0";

}


sub vcl_backend_response {
    if (beresp.http.Surrogate-Control ~ "ESI/1.0") {
        unset beresp.http.Surrogate-Control;
        set beresp.do_esi = true;
    }
}

I checked the both headers Surrogate-Control and Surrogate-Capability - they exists.

By the way, I use nginx:https -> varnish -> nginx:http:8080 -> symfony project.

I spend much time for experiments and I didn't find any decision... Please tell me where is my mistake?

Answer 1

So, that is an answer: ESI does not work with https ! I just write path() function instead url() and everything became all right!

(I didn't find any information about https and ESI, maybe I wrong; so be carefull...)

Second I've not understood that Surrogate-Control need not for ESI sub-requests, so I was in delusion when configure my cache rules. Surrogate-Control don't use in sub-requests .

The third thing which I grasped is different between render_esi(url("someUrl")) and render_esi(controller("someBundle:nameOfController:someAction")) : first make url which you point before in routing; second use fragments . So it would be helpful for cache rules.