Trusted Types: ServiceWorkerContainer.register()

[hamishwillee]

ServiceWorkerContainer.register() takes a scriptURL defining the service worker. This updates the docs to reflect that the scriptURL can be a trusted type.

As per our pattern, this adds a top header and a security considerations section. To make that "work" I pushed most of the original top level overview down into a Description section.
I also added just the first example showing how to use TT.

Related docs work can be tracked in:

• [WebAPI] Implement Trusted Types support for document.write()/document.writeln() #37518
• [WebAPI] Enable Trusted Types in early beta #41507

[github-actions]

Preview URLs

• /en-US/docs/Web/API/ServiceWorkerContainer/register

Flaws (1)

URL: /en-US/docs/Web/API/ServiceWorkerContainer/register
Title: ServiceWorkerContainer: register() method
Flaw count: 1

• broken_links:
  • Link /en-US/docs/Web/Security/Secure_Contexts is a redirect