Script (Exponea Service)

Description

The exponeaServiceWorker function manages the lifecycle of a service worker specifically for exponea (Exponea), a customer data platform used for marketing automation, event tracking, and web push notifications. It ensures that the correct version of the service worker (located under /static/) is actively registered, replacing any incorrect or outdated versions.

Purpose

• Ensures consistency and correctness of the registered service worker.
• Prevents service workers from interfering with exponea's tracking or notification functionality.
• Helps manage deployment integrity by removing old or non-static service workers.

Feature Goal

• Checks for Service Worker support:
  • Uses if ("serviceWorker" in navigator) to detect browser compatibility.
• Retrieves current service worker registration:
  • Calls navigator.serviceWorker.getRegistration() to fetch any existing registration.
• Validates existing service worker:
  • If a worker exists and is active, it checks:
    • Whether its script URL contains /static/.
    • If not, it's considered outdated or invalid.
• Unregisters invalid worker:
  • Calls unregister() on the outdated service worker to remove it.
• Registers the correct service worker:
  • If no worker exists or the previous one was removed, it registers:
    • "/static/service-worker.js" — the expected path for exponea’s scripts.

Use Case

• Automatically invoked during application startup or exponea integration bootstrap.
• Maintains clean and predictable service worker behavior.
• Ensures push notifications and tracking run via correctly scoped scripts.