ajax_deliver in core/includes/ajax.inc
Packages and sends the result of a page callback as an Ajax response.
backdrop_deliver_html_page in core/includes/common.inc
Packages and sends the result of a page callback to the browser as HTML.
backdrop_page_create_cache in core/includes/common.inc
Create a page cache object for a page request.
backdrop_send_headers in core/includes/bootstrap.inc
Sends the HTTP response headers that were previously set, adding defaults.
backdrop_serve_page_from_cache in core/includes/bootstrap.inc
Sets HTTP headers in preparation for a cached page response.
drupal_get_http_header in core/includes/drupal.inc
Gets the HTTP response headers for the current page.
layout_route_handler in core/modules/layout/layout.module
Route handler callback; Execute the current route item or wrap in a layout.
redirect_exit in core/modules/redirect/redirect.module
Implements hook_exit().
views_plugin_cache::cache_start in core/modules/views/plugins/views_plugin_cache.inc
Start caching javascript, css and other out of band info.
views_plugin_cache::gather_headers in core/modules/views/plugins/views_plugin_cache.inc
Gather out of band data, compare it to what we started with and store the difference.