Issue #3339374 by gapple, andypost, longwave, catch, smustgrave: [11.x] Require array argument for AddCssCommand

Issue #3400359 by el7cosmos, dinazaur, alexpott, ReINFaTe: External fonts cannot be loaded via add_css ajax command

Issue #3110517 by gapple, andypost, nod_, Wim Leers, smustgrave: Improve Drupal\Core\Ajax\AddCssCommand to accept an array of CSS assets

Issue #3020352 by tedbow, Wim Leers, tim.plunkett, xjm, andrewmacpherson, lauriii, phenaproxima, alwaysworking: Create a new AnnounceCommand to call Drupal.announce on an AjaxResponse

Issue #2935256 by Jo Fitzgerald, voleger, kim.pepper, ibustos, Yogesh Pawar, catch, jibran: Remove all usages of drupal_get_message and drupal_set_message in modules

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2368797 by Wim Leers, dawehner, rteijeiro: Optimize ajaxPageState to keep Drupal 8 sites fast on high-latency networks, prevent CSS/JS aggregation from taking down sites and use HTTP GET for AJAX requests

Issue #2363139 by Wim Leers, dawehner, larowlan: _content controllers may only return render arrays, not strings.

Issue #2273277 by Wim Leers, effulgentsia, Fabianx: Fixed Figure out a solution for the problematic interaction between the render system and the theme system when using #pre_render.

Issue #2147009 by tim.plunkett, RoSk0 | vijaycs85: Convert all forms in ajax_forms_test module to FormInterface.

Issue #2095335 by Wim Leers, vijaycs85: Remove drupal_add_css() and drupal_add_js() from the ajax system.

Issue #2074509 by tim.plunkett, falcon03, mgifford, Xano: Fixed Add missing #title property to ensure form accessibility.

Issue #1987602 by glennpratt, juampy, pwieck, vijaycs85, dawehner, tim.plunkett, effulgentsia: Convert ajax_form_callback() to a new style controller.

Issue #1987066 by Kevin Morse, JohnAlbin, rteijeiro, echoz, ry5n: Rename files to match CSS file naming convention.

Issue #1848880 by Wim Leers, effulgentsia: Test order of AJAX commands: add Ajax\FrameworkTest::testOrder(), strengthen testLazyLoad(), fix JS settings not being prepended.

Issue #1356170 by ohnobinki, tim.plunkett: Remove all uses of array_merge_recursive(), or document why they are being used instead of NestedArray::mergeDeep().

Issue #1802072 by fubhy, Stalski: Ajax callbacks should be callbacks defined as function or class method.

Issue #1431658 by Albert Volkman, xjm, kid_icarus, ChinggizKhan, rgristroph, connork: Massive API docs cleanup for system tests

Issue #1754712 by TravisCarden, Bußmeyer, pingers: Fixed @return unknown_type() should be @return mixed.

Issue #1071818 by JeremyFrench, nod_, reglogge, anthbel, xjm, sun, NROTC_Webmaster, lliss, Cottser: Fixed Lazy-loading CSS fails in IE.

Issue #1287368 by TwoD, valthebald, xjm, sun: Fixed Drupal.settings.ajaxPageState.css gets overwritten.

Nate Lampton authored Oct 30, 2011 and catch committed Nov 01, 2011

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

Issue #561858 by effulgentsia, sun, rfay, Nick_vh, merlinofchaos, katbailey, dereine et al: documentation and tests for drupal_add_js() and drupal_add_css() with the AJAX framework.

- Patch #561858 by effulgentsia, sun, rfay, Nick_vh, merlinofchaos, katbailey, dereine, tstoeckler: drupal_add_js() and drupal_add_css() to work for AJAX requests too by adding lazy-load to AJAX framework.