// Disable SvelteKit hover-prefetch in browser-mode tests. ADR-012 / #553.
//
// Hover-prefetch fires real fetch requests for route loader chunks; those
// requests go through the same Playwright route handler that serves mocked
// modules. An in-flight prefetch landing after iframe teardown can hit the
// route handler with a closed birpc channel, raising an unhandled rejection
// that exits the run with code 1 even when every individual test was green.
document.body.dataset.sveltekitPreloadData = 'off';