hx-preload

Note: This is an extension attribute. To use it, you must include the preload extension found at ext/hx-preload.js.

The hx-preload attribute allows you to preload content before the user actually triggers the request, improving perceived performance.

Installation

Load the extension in your htmx configuration:

htmx.config.extensions = 'preload';

Or load the extension file directly (if available as a separate extension).

Basic Usage

<a href="/details" hx-get="/details" hx-preload="mouseenter">
    View Details
</a>

Trigger Events

You can specify when to preload:

• mouseenter - preload when mouse enters the element
• mouseover - preload on mouseover
• touchstart - preload on touch start (for mobile)

<button hx-get="/data" hx-preload="mouseenter">
    Load Data
</button>

Notes

• Preloads content on the specified trigger event
• When the actual request is made, htmx uses the preloaded content if available
• Useful for improving perceived performance, especially on slower networks
• Cached preloaded responses are used when the actual request is triggered
• Falls back to normal request if preload hasn’t completed

See Also

• Extensions