Vantorix – Subfolder Link Fixer

Links such as /, /about-us/ or /contact/ are handy because they work on any domain. But when WordPress lives in a subfolder — for example https://example.com/demo/ — those links jump to the domain root and visitors land on the wrong page or a 404.

Subfolder Link Fixer detects your site’s subfolder from the Home URL and quietly fixes those links in the page sent to the browser:

• href="/" becomes href="/demo/"
• href="/about-us/" becomes href="/demo/about-us/"
• Form actions like action="/contact/" are fixed too.

A live link tester on the settings screen shows exactly what visitors will get for any link you type.

Nothing is written to your database. Your posts, menus and page-builder data stay exactly as they were, so you can move the site back to a root domain, export it, or switch the plugin off at any time.

Good for

• Theme and template-kit demo sites hosted side by side, e.g. example.com/kit-one/, example.com/kit-two/.
• Staging copies that live in a subfolder of the live domain.
• Subdirectory Multisite networks — every subsite gets its own folder automatically.
• Imported content or page-builder layouts that contain hard-coded / links.

What it leaves alone

• Protocol-relative links (//cdn.example.com/...) and full URLs.
• Links that already include the subfolder.
• data-* attributes.
• Admin screens, AJAX, REST API, feeds and the Elementor editor preview.
• Sites installed at the domain root — the plugin simply stays idle.

For developers

• vantorix_slf_attributes — array of attributes to rewrite. Default: href, action.
• vantorix_slf_should_run — return false to skip the current request.

Example: also rewrite src attributes.

add_filter( 'vantorix_slf_attributes', function ( $attributes ) {
    $attributes[] = 'src';
    return $attributes;
} );