function hook_emit_cache_tags in Drupal 8 Cache Backport 7

Allows to react to emitting a cache tags header.

Parameters

array $tags: The tags to emit to the reverse proxy.

1 function implements hook_emit_cache_tags()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

d8cache_emit_cache_tags in ./d8cache.module

Implements hook_emit_cache_tags().

1 invocation of hook_emit_cache_tags()

core.inc in includes/core.inc

Core functions for the D8 caching system backport.

File

./d8cache.api.php, line 14

API documentation for D8Cache.

Code

function hook_emit_cache_tags($tags) {
  drupal_add_http_header('Surrogate-Key', implode(' ', $tags));
}