Insight - Trupharm - Deferred Add To Cart

Delays the single-product add-to-cart submit so tracking pixels reach the network before the page navigates.

Description

On sugar360.co.il the add-to-cart button submits form.cart natively, and measurement showed the browser begins navigating only ~106ms after the click. Meta's pixel sends its events as image/fetch requests, which are cancelled by that navigation. GA4 survives because it uses sendBeacon.

This plugin intercepts the submit on single product pages, waits a short window (default 400ms, filterable via insight_ajax_cart_send_delay), then submits the form normally with HTMLFormElement.prototype.submit(). The WooCommerce POST and redirect-to-cart behaviour are unchanged - only the start of the navigation moves.

Verified live: the tracking window widened from 106ms to ~1400ms, and a Meta custom event fired on submit completed 592ms before navigation began.

Changelog

2.0.0

• Rewrite: defer the native submit instead of doing an AJAX add-to-cart.
• fix: 1.x used the wc-ajax endpoint and then also fell through to a native submit, adding the product twice per click. Replaced with a single native submit path, which cannot double-add.
• Removes the extra full cart-page fetch that 1.0.0 performed via redirect: 'follow'.

1.1.0

• Switched from posting the product form to the lightweight wc-ajax=add_to_cart endpoint. Never released - superseded by 2.0.0 after the double-add was found in testing.

1.0.0

• Initial version: AJAX add-to-cart via the product form. Never released.