Copy link in the footer does nothing on Drupal core 11.4.10, and the footer test fails

Problem/Motivation

The Copy link menu item in the Social media menu carries an inline hx-on-click handler. Drupal core 11.4.10 strips hx* and on* attributes from rendered links, so the item renders without it and does nothing.

The functional test for the footer looks for a[hx-on-click], so "Footer is missing the copy page link control" fails 28 scenarios on every 1.0.x merge request, for example pipeline 1003253 on !84.

Steps to reproduce

1. Install The Rightup on Drupal core 11.4.10.
2. Click the chain link icon in the footer. Nothing is copied.
3. Run tests/features/01-website-base-requirements/01-06-front-end-pages.feature.

Proposed resolution

• The menu link keeps role: button and gains a copy-link class instead of the inline handler. Classes are kept by core.
• The HTMX handler (hx-on:click) is added by the theme template to the link with that class: #3631079.
• The footer step checks a.copy-link[hx-on\:click].
• hx-on uses eval, so a strict Content Security Policy needs 'unsafe-eval' in script-src.

An existing site keeps its old menu link, because default content is not imported again. Update it once with:

drush php:eval '$l = \Drupal::service("entity.repository")->loadEntityByUuid("menu_link_content", "870f0549-cf5e-5a90-ac55-d68d3318fd19"); $o = $l->link->first()->options; unset($o["attributes"]["hx-on-click"]); $o["attributes"]["class"] = array_values(array_unique(array_merge((array) $o["attributes"]["class"], ["copy-link"]))); $l->link->first()->options = $o; $l->save();'
drush cr

No update hook: a recipe has none, and the change is one menu link.

Remaining tasks

• ✅ File an issue
• ✅ Addition/Change/Update/Fix
• ✅ Testing to ensure no regression
• ✅ Automated unit/functional testing coverage
• ➖ Developer Documentation support
• ➖ User Guide Documentation support
• ➖ UX/UI designer responsibilities
• ❌ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ❌ Update Release Notes
• ❌ Release

User interface changes

• The footer Copy link copies the page address again, with the theme change.

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• The footer Copy link works on Drupal core 11.4.10 and later. Existing sites update the menu link once (see the issue).

AI-Generated: Yes. Drafted with Claude Code and reviewed before posting.