app/lib/transition-abort.mjs

Functions

Imports

It imports no other module of this repo. Imported by app/enhance/header.ts.

Source

1// A cross-document view transition (motion-print.css, type `site`) the browser abandons rejects its promises with
2// `InvalidStateError: Transition was aborted because of invalid state`: the page was reloaded, went hidden or was
3// navigated again while the transition was still running. Nothing in the page caused it and nothing in the page can
4// handle it, since the promise belongs to the browser's own navigation. It is the one error the page lets go: every
5// other rejection, including any other InvalidStateError, is still reported.
6
7/**
8 * Whether a rejection is the browser abandoning a view transition.
9 *
10 * @param {unknown} reason
11 */
12export function isAbandonedTransition(reason) {
13  return reason instanceof DOMException && reason.name === "InvalidStateError" && reason.message.startsWith("Transition was aborted");
14}