Subform-repeatable javascript #39964
Description
Steps to reproduce the issue
Create a repeatable subform that contains a field that uses js
You can add this code to mod_article_categories.xml as a test
<field
name="field-name"
type="subform"
label="Subform Field"
multiple="true"
min="1"
max="10"
>
<form>
<fieldset name="basic" addfieldprefix="Joomla\Component\Categories\Administrator\Field">
<field
name="parent"
type="modal_category"
label="MOD_ARTICLES_CATEGORIES_FIELD_PARENT_LABEL"
extension="com_content"
filter="integer"
published=""
select="true"
new="true"
edit="true"
clear="true"
/>
</fieldset>
</form>
</field>
Expected result
A working repeatable field to select the category
Actual result
Only the first occurence works. All subsequent fields do not as the modal is empty
Additional comments
I understand that this is because the modal_category field uses javascript to populate the iframe in the body of the modal but as it does this on page load it does not work for the repeated field because it is not present on page load.
I assume that there could be some javascript that could be instantiated when a subform row is added that would populate the field as required. But I don't have a clue with js to know where to start