Blog

Testing consent blocking in CI: catching tracker leaks before they deploy

Consent regressions ship like any other regression: silently. A CI test that loads the site under "reject all" and fails the build when an unconsented tracker fires. September 28, 2026

How to debug consent race conditions in lazy-loaded components

2026-09-27. Lazy-loaded components can mount before consent state resolves, firing trackers in the gap. Reproduce the race reliably, find the ordering bug, and gate every integration behind consent resolution.

How to handle consent across route changes in single-page apps

Single-page apps navigate without reloading, and consent banners built for page loads miss the gap. Re-check consent state on every route change.

How to sync consent state across subdomains

Your visitor accepts on the marketing site, then gets the banner again on the app subdomain. One shared consent record: root-domain cookies, consistent reads, and real-time propagation.

What to do when a third-party SDK ignores your consent state

Some SDKs initialize on load and track no matter what your banner says. Lazy init, gated wrappers, and network-level blocking: the developer patterns for containing them.

How to write automated tests for your consent banner

Consent banners break silently. A deploy reorders scripts, a new tag fires early, a framework upgrade changes load timing, and nobody notices for weeks because the banner still looks fine. Automated tests catch that drif

How to block scripts before consent without breaking your site

Mark scripts inert, let consent state decide, and observe the DOM for late injections. The developer pattern that works.

How do I add a cookie consent banner to a React or Next.js app?

Add the consent script as early as possible in the document head, gate every non-essential script behind the visitor's consent state, and expose the.

What is a consent management API?

A consent management API lets your code ask a consent platform what the visitor agreed to, so every script, component, and server process can respect.