Breaking: #78988 - Remove optional Fluid TypoScript template

See Issue #78988

Description

The static include file "Fluid: (Optional) default ajax configuration (fluid)" was meant as an example/showcase on how to use Fluid Widgets in FE. But the currently used includes are outdated or broken. Furthermore the way of including files with page.headerData instead of page.includeJSLibs or page.includeCSSLibs is not the preferred way anymore. Also in many situations this way of including JavaScript and CSS conflicts with other included JavaScript libs and CSS files.

Including the files manually has many benefits:

  • more control of what versions of the JavaScript libs are included
  • prevent multiple jquery.js includes
  • more control of adjusting styling without resetting/overriding styles delivered by jquery-ui-theme.css

Impact

The jQuery JavaScript and CSS files are not included anymore so the AJAX handling in the frontend will not work anymore when the site relies on these files.

Affected Installations

All installations that depend on the jQuery includes added by the static TypoScript template "Fluid: (Optional) default ajax configuration (fluid)".

Migration

Include the needed file manually in your TypoScript template.

page.includeJSLibs {
    jquery = https://code.jquery.com/jquery-3.1.1.slim.min.js
    jquery.external = 1
    jquery.integrity = sha256-/SIrNqv8h6QGKDuNoLGA4iret+kyesCkHGzVUUV0shc=
    jqueryUi = https://code.jquery.com/ui/1.12.1/jquery-ui.min.js
    jqueryUi.external = 1
    jqueryUi.integrity = sha256-VazP97ZCwtekAsvgPBSUwPFKdrwD3unUfSGVYrahUqU=
}

page.includeCSSLibs {
    jqueryUI = https://code.jquery.com/ui/1.12.1/themes/smoothness/jquery-ui.css
    jqueryUi.external = 1
}