DOM & browser

Helpers that touch the DOM, the browser navigation, downloads or the View Transitions API. They all expect a browser environment.

Downloads

• downloadBlob — downloads a Blob as a file.
• downloadString — downloads a string as a file with a custom MIME type.
• downloadUrl — downloads from an http(s): or blob: URL.

Navigation & view

• openUrl — navigates to a URL, breaking out of an iframe when needed.
• printHtml — prints arbitrary HTML through a hidden iframe.
• viewTransition — wraps the View Transitions API with a graceful fallback.

Predicates

• isHtmlElement — type-guarding instanceof HTMLElement check that is safe in non-browser environments.