Merge branch '4.4' into 5.4

* 4.4: Use `path` instead of `url` in SSI documentation

Author: javiereguiluz

http_cache/ssi.rst

@@ -22,7 +22,7 @@ The SSI instructions are done via HTML comments:
  <!-- ... some content -->
 
  <!-- Embed the content of another page here -->
- <!--#include virtual="http://..." -->
+ <!--#include virtual="/..." -->
 
  <!-- ... more content -->
  </body>
@@ -121,8 +121,8 @@ The profile index page has not public caching, but the GDPR block has
  {# you can use a controller reference #}
  {{ render_ssi(controller('App\\Controller\\ProfileController::gdpr')) }}
 
- {# ... or a URL #}
- {{ render_ssi(url('profile_gdpr')) }}
+ {# ... or a path (in server's SSI configuration is common to use relative paths instead of absolute URLs) #}
+ {{ render_ssi(path('profile_gdpr')) }}
 
 The ``render_ssi`` twig helper will generate something like: