Before 2.9, the first time dev was run on a project Vite needed to perform a scan phase to discover dependencies and then pre-bundle them before starting the server. In 2.9 both scanning #7379 and pre-bundling #6758 of dependencies are now non-blocking, so the server starts right away during cold start. We also now allow requests to flow through the pipeline improving initial cold start load speed and increasing the chances of discovering new missing dependencies when re-processing and letting Vite populate the module graph and the browser to process files. In many cases, there is also no need to full-reload the page when new dependencies are discovered.
CSS Sourcemap support during dev (experimental)
Vite now supports CSS sourcemaps #7173. This feature is still experimental, and it is disabled by default to avoid incurring a performance penalty for users that don't need it. To enable it, set css.devSourcemap to true.
Avoid splitting vendor chunks by default
Vite's default chunking strategy was a good fit for most SPAs, but it wasn't ideal in some other use cases. Vite doesn't have enough context to make the best decision here, so in Vite 2.9 the previous chunking strategy is now opt-in #6534 and Vite will no longer split vendor libs in a separate chunk.
Web Workers enhancements
Web Workers now supports source map generation (see #5417). The implementation is also now more robust, fixing several issues encountered in previous versions (#6599).
Raw Glob Imports
Glob imports support for the raw modifier syntax has changed to using { as: 'raw' }, which works in the same way as the ?raw suffix in regular imports:
The { assert: { type: 'raw' }} syntax introduced in v2.8 has been deprecated. See #7017 for more information.
New tools for Plugin and Framework Authors
Client Server Communication API
Vite now provides utilities for plugins to help handle the communication with clients connected to Vite's server #7437. Reusing the open WebSocket connection between the server and clients several use cases can be simplified (vite-plugin-inspect, SliDev, and many others). Check out the Client Server Communication docs for more information.
// Send a message from the client to the server
if (import.meta.hot) {
import.meta.hot.send('my:from-client', { msg: 'Hey!' })
</tr></table>
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Bumps vite from 2.8.5 to 2.9.1.
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Commits
a3b9f4crelease: v2.9.1d0253d7fix: brotli let for reassignment (#7544)87fbe13docs(changelog): fix raw glob imports syntax (#7540)173e4c9fix: allow port 0 to be provided to server (#7530)29c1ec0fix: dynamic import warning with@vite-ignore(#7533)41fa2f5fix: remove unneeded skipping optimization log (#7531)4324f48chore: 2.9 release notes (#7525)997e735release: v2.9.08efc6a6fix: revert #7463 and #6624 (#7522)4fda42fchore: typo (#7520)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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