augment Navigation type - #6552
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dummdidumm
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Sep 3, 2022
Co-authored-by: Simon H <5968653+dummdidumm@users.noreply.github.com>
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Rich-Harris
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…error page (#16381) After an error page renders, `current.route` is `null` (`load_root_error_page` stores `route: null` in the navigation state). The next navigation computes ```js const route_changed = current.route ? route.id !== current.route.id : false; ``` so the route counts as unchanged no matter where the user goes next. A root layout server load that tracked `route` is then skipped as fresh, and its data from before the error page renders on the new page. The new test's failing assertion on `version-3` shows the layout still claiming the previous route: ``` Expected: "/b" Received: "/a" ``` A missing `current.route` now counts as changed. On a first-ever navigation the flag is irrelevant, the node has no previous data to reuse anyway, so the only behavior change is the conservative refetch after error pages. The interaction was never designed. `route: null` came in #6552 to give `beforeNavigate` a value meaning "no matched route", and the guard came two months later in #7450 with route tracking itself, mirroring the adjacent `url_changed` null-guard. Neither discussed the error-page case. The test lives in the no-ssr app. Its root layout gains a server load returning `route.id`, the navigation's data request is intercepted with a 500 to produce the error page, and the follow-up navigation must show the new route id. The app's root `+layout.server.js` was an empty file, shipped by #11354 so its 404-loop test has a server load node in dev; giving it a real load keeps that trigger intact. Found while reviewing #16380, which mirrors this computation for the error page itself and carries the same one-line fix. --- ### Please don't delete this checklist! Before submitting the PR, please make sure you do the following: - [x] It's really useful if your PR references an issue where it is discussed ahead of time. In many cases, features are absent for a reason. For large changes, please create an RFC: https://github.com/sveltejs/rfcs - [x] This message body should clearly illustrate what problems it solves. - [x] Ideally, include a test that fails without this PR but passes with it. ### Tests - [x] Run the tests with `pnpm test` and lint the project with `pnpm lint` and `pnpm check` ### Changesets - [x] If your PR makes a change that should be noted in one or more packages' changelogs, generate a changeset by running `pnpm changeset` and following the prompts. Changesets that add features should be `minor` and those that fix bugs should be `patch`. Please prefix changeset messages with `feat:`, `fix:`, or `chore:`. ### Edits - [x] Please ensure that 'Allow edits from maintainers' is checked. PRs without this option may be closed.
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closes #6551 — gives
beforeNavigateandafterNavigatemore information about which route they are navigating from and toPlease don't delete this checklist! Before submitting the PR, please make sure you do the following:
Tests
pnpm testand lint the project withpnpm lintandpnpm checkChangesets
pnpm changesetand following the prompts. All changesets should bepatchuntil SvelteKit 1.0