---
title: "Important: #90264 - Initialize datepicker JS in external file"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:important-90264"
source: "Changelog/11.4/Important-90264-InitializeDatepickerJSInExternalFile.rst"
typo3-version: "11.4"
typo3-major: 11
type: "important"
issue: 90264
forge: "https://forge.typo3.org/issues/90264"
tags: ["ext:form"]
rendered: "2026-09-23T19:53:57+00:00"
---

# Important: #90264 - Initialize datepicker JS in external file {#important-90264}

See [forge#90264](https://forge.typo3.org/issues/90264)

## Description {#description}

The initialization of the datepicker has been moved into an external
file residing in `EXT:form/Resources/Public/JavaScript/Frontend/DatePicker.js`.
Some installations might restrict requesting public resources from `/typo3/`.
Therefore, a new YAML configuration has been introduced:

`TYPO3.CMS.Form.prototypes.standard.formElementsDefinition.DatePicker.properties.datePickerInitializationJavaScriptFile`

That way, integrators are able to move the file to a different folder
which is publicly accessible.