New tab preview for html project works with locales different to en#1458
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Pull request overview
Fixes HTML “Preview in new tab” for unsaved starter projects opened under localized routes (e.g., en-US) by allowing browser-preview loads to reuse the locally cached project even when the cached project’s locale differs from the route locale.
Changes:
- Update
useProjectcache-loading rules to treatbrowserPreview=true(from Redux state or query string) as a signal to load cached projects even when locales don’t match. - Add a regression test ensuring embedded browser preview uses the cached project despite a locale mismatch.
- Reset
window.historyin embedded tests to avoid query-string leakage across tests.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| src/hooks/useProject.js | Adjusts cache eligibility and locale-matching logic for browser preview loads. |
| src/hooks/useProject.test.js | Adds coverage for embedded browser preview with locale mismatch and resets URL state after tests. |
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closes: 1322
Fixes HTML “Preview in new tab” for unsaved projects opened in localized routes such as
en-US.Unsaved starter projects are cached locally with their source locale, often
en.The browser preview route uses the current URL locale, for example
en-US, so the cached unsaved project was rejected and the preview loaded a fresh blank starter instead.This change lets
browserPreview=trueloads use the matching cached project even when the cached locale differs from the route locale.Update from copilot comment: the
?browserPreview=truecache bypass is now scoped to embedded previews only.WebComponentLoaderpasses its existingembeddedprop intouseProject, so normal editor routes with?browserPreview=truestill require the cached project locale to match. Embedded preview tabs can still load unsaved cached changes across locale fallbacks, which preserves the original fix.I've checked the other repos and we are effectively passing the prop and tested so we should be good.
Screen.Recording.2026-05-07.at.17.57.26.mov