feat(wasm): add SSR support for `.wasm?init` by upsuper · Pull Request #21102 · vitejs/vite

upsuper · 2025-11-10T05:01:02Z

This PR intends to add WASM support for Vitest and SSR. It should fix #8882 as well as vitest-dev/vitest#6723.

Implementation

The main changes are in the wasm plugin, that provide different helper code based on whether the consumer is server or client. As I'm new to this project, it's not clear to me whether this is the right approach.

I also looked into vite-plugin-wasm for how it handles SSR and vitest. What it does is:

explicitly detect whether it's under SSR or whether it's running for Vitest, and
if so, force inline WASM into base64 encoded form.

This approach doesn't feel great to me.

Testing

There are two tests I added:

A new e2e test ssr-wasm which serves SSR with WASM loaded.
New tests inside existing wasm e2e test that checks that WASM can be imported and run within tests.

It's not clear to me whether those tests are in the right location. Please let me know if there are better places for them.

Regarding Vitest

Checking consumer actually doesn't seem to be a reliable way to work in Vitest. Vitest's environment can specify viteEnvironment. Within its builtin environments, jsdom and happy-dom specifies client as their vite environment which, on the Vite side, uses consumer: 'client', even though the tests are still running in Node.js.

I'm going to leave it there given that Vitest's default environment is node, so this mechanism should just work most of the time, and also because I failed to find a way to add test for this behavior.

I tried adding // @vitest-environment jsdom to a spec file, but esbuild complains about

Invariant violation: "new TextEncoder().encode("") instanceof Uint8Array" is incorrectly false

which is probably because jsdom doesn't have the proper implementation for it currently. So I'm not going to dig deeper on this rabbit hole for now.

One trick I found is that some plugins like vite-plugin-solid implicitly changes the test environment, which could potentially cause confusion.

If someone wants to address this part in the future, one possible approach is from vite-plugin-wasm that goes through plugins to find vitest, then combine it with the consumer check to decide which way the file is passed and obtained. It's hacky but I can confirm it works locally.

playground/ssr-wasm/server.js

sapphi-red

Thanks, but this isn't working for build.
When I run vite build --ssr src/app.js in playground/ssr-wasm, I expect the wasm files to be copied (or inlined depending on the option) to dist. But that didn't happen.

packages/vite/src/node/build.ts

upsuper · 2025-11-12T02:16:20Z

@sapphi-red Thanks for your review! I have looked into the issue, and now build should be working correctly.

The test should now be covering the build case properly as well, and I've add some tests to verify the build result. Also I have done some manual testing locally and confirmed that it works the way I'd expect.

upsuper · 2025-11-17T20:41:04Z

Hi @sapphi-red, it has been a week since the last update of this PR, would you mind taking another look at it? Is there anything I can do to help moving it forward?

upsuper · 2025-11-25T22:57:18Z

@sapphi-red I updated the PR to handle wasm init specially via replacing the asset placeholder with a different placeholder, and replace it as part of renderChunk in this plugin. The tests continue to pass and I expect it not to affect any existing usage. Please let me know if this can still have problems.

upsuper · 2025-12-12T11:41:18Z

The tests may fail without the _VITE_TEST_JS_PLUGIN=1 env var, but don't worry about that.

I assume that the current CI failures are from this. I checked ssr-wasm locally, and it seems to work as expected.

sapphi-red · 2025-12-16T08:37:45Z

@upsuper Would you enable "Allow edits from maintainers" so that I and other can add changes?

upsuper · 2025-12-16T10:03:26Z

@upsuper Would you enable "Allow edits from maintainers" so that I and other can add changes?

I'd like to, but unfortunately I can't, because this is forked under an org I use to park all my forks, and GitHub doesn't support "Allow edits from maintainers" for a repo owned by an org.

I've instead invited you as an admin of my fork project. Hope that helps.

sapphi-red · 2025-12-16T10:18:00Z

Thanks! I was able to add the changes.

shulaoda · 2026-02-05T08:34:43Z

@upsuper Could you grant me access to this repository so I can make some updates?

shulaoda · 2026-02-05T09:06:21Z

@upsuper Could you grant me access to this repository so I can make some updates?

Thanks! I was able to add the changes.

Related to vitejs/vite#21566 This is because vitejs/vite#21102 will refactor the logic around `wasmHelperPlugin`, and `nativeWasmHelperPlugin` is not aligned with the `fileToUrl` behavior. So I plan to remove it for now and re-port it when it’s needed again later.

sapphi-red

Thanks for your patience 💚

…e the workaround

This PR contains the following updates: | Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) | |---|---|---|---| | [vite](https://vite.dev) ([source](https://github.com/vitejs/vite/tree/HEAD/packages/vite)) | [`^7.3.1` → `^8.0.0`](https://renovatebot.com/diffs/npm/vite/7.3.1/8.0.0) | ![age](https://developer.mend.io/api/mc/badges/age/npm/vite/8.0.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/vite/7.3.1/8.0.0?slim=true) | --- ### Release Notes <details> <summary>vitejs/vite (vite)</summary> ### [`v8.0.0`](https://github.com/vitejs/vite/blob/HEAD/packages/vite/CHANGELOG.md#800-2026-03-12) [Compare Source](vitejs/vite@v7.3.1...v8.0.0) ![Vite 8 is here!](../../docs/public/og-image-announcing-vite8.webp) Today, we're thrilled to announce the release of the next Vite major: - **[Vite 8.0 announcement blog post](https://vite.dev/blog/announcing-vite8.html)** - [Docs](https://vite.dev/) (translations: [简体中文](https://cn.vite.dev/), [日本語](https://ja.vite.dev/), [Español](https://es.vite.dev/), [Português](https://pt.vite.dev/), [한국어](https://ko.vite.dev/), [Deutsch](https://de.vite.dev/), [فارسی](https://fa.vite.dev/)) - [Migration Guide](https://vite.dev/guide/migration.html) ##### ⚠ BREAKING CHANGES - remove `import.meta.hot.accept` resolution fallback ([#21382](vitejs/vite#21382)) - update default browser target ([#21193](vitejs/vite#21193)) - the epic `rolldown-vite` merge ([#21189](vitejs/vite#21189)) ##### Features - update rolldown to 1.0.0-rc.9 ([#21813](vitejs/vite#21813)) ([f05be0e](vitejs/vite@f05be0e)) - warn when `vite-tsconfig-paths` plugin is detected ([#21781](vitejs/vite#21781)) ([ada493e](vitejs/vite@ada493e)) - **css:** support es2025 build target for lightningcss ([#21769](vitejs/vite#21769)) ([08906e7](vitejs/vite@08906e7)) - forward browser console logs and errors to dev server terminal ([#20916](vitejs/vite#20916)) ([2540ed0](vitejs/vite@2540ed0)) - update rolldown to 1.0.0-rc.8 ([#21790](vitejs/vite#21790)) ([a0c950e](vitejs/vite@a0c950e)) - export `Visitor` and `ESTree` from `rolldown/utils` ([#21664](vitejs/vite#21664)) ([45de31e](vitejs/vite@45de31e)) - update rolldown to 1.0.0-rc.6 ([#21714](vitejs/vite#21714)) ([37a65f8](vitejs/vite@37a65f8)) - use util.inspect for CLI error display ([#21668](vitejs/vite#21668)) ([5f425a9](vitejs/vite@5f425a9)) - update rolldown to 1.0.0-rc.5 ([#21660](vitejs/vite#21660)) ([b3ddbc5](vitejs/vite@b3ddbc5)) - update rolldown to 1.0.0-rc.4 ([#21617](vitejs/vite#21617)) ([1ee5c7f](vitejs/vite@1ee5c7f)) - **wasm:** add SSR support for `.wasm?init` ([#21102](vitejs/vite#21102)) ([216a3b5](vitejs/vite@216a3b5)) - integrate devtools ([#21331](vitejs/vite#21331)) ([acbf507](vitejs/vite@acbf507)) - update rolldown to 1.0.0-rc.3 ([#21554](vitejs/vite#21554)) ([43358e9](vitejs/vite@43358e9)) - **manifest:** add `assets` field for standalone CSS entry points ([#21015](vitejs/vite#21015)) ([f289b9b](vitejs/vite@f289b9b)) - update rolldown to 1.0.0-rc.2 ([#21512](vitejs/vite#21512)) ([fa136a9](vitejs/vite@fa136a9)) - **bundled-dev:** support worker in initial bundle ([#21415](vitejs/vite#21415)) ([f3d3149](vitejs/vite@f3d3149)) - **dev:** detect port conflicts on wildcard hosts ([#21381](vitejs/vite#21381)) ([b0dd5a9](vitejs/vite@b0dd5a9)) - shortcuts case insensitive ([#21224](vitejs/vite#21224)) ([7796ade](vitejs/vite@7796ade)) - update rolldown to 1.0.0-rc.1 ([#21463](vitejs/vite#21463)) ([ff9dd7f](vitejs/vite@ff9dd7f)) - warn if `envPrefix` contains spaces ([#21292](vitejs/vite#21292)) ([9fcde3c](vitejs/vite@9fcde3c)) - update rolldown to 1.0.0-beta.60 ([#21408](vitejs/vite#21408)) ([c33aa7c](vitejs/vite@c33aa7c)) - update rolldown to 1.0.0-beta.59 ([#21374](vitejs/vite#21374)) ([0037943](vitejs/vite@0037943)) - add `ignoreOutdatedRequests` option to `optimizeDeps` ([#21364](vitejs/vite#21364)) ([b2e75aa](vitejs/vite@b2e75aa)) - add ios to default esbuild targets ([#21342](vitejs/vite#21342)) ([daae6e9](vitejs/vite@daae6e9)) - update rolldown to 1.0.0-beta.58 ([#21354](vitejs/vite#21354)) ([ba40cef](vitejs/vite@ba40cef)) - update rolldown to 1.0.0-beta.57 ([#21335](vitejs/vite#21335)) ([d5412ef](vitejs/vite@d5412ef)) - **css:** support es2024 build target for lightningcss ([#21294](vitejs/vite#21294)) ([bd33b8e](vitejs/vite@bd33b8e)) - update rolldown to 1.0.0-beta.56 ([#21323](vitejs/vite#21323)) ([9847a63](vitejs/vite@9847a63)) - introduce v2 native plugins and enable it by default ([#21268](vitejs/vite#21268)) ([42f2ab3](vitejs/vite@42f2ab3)) - **ssr:** avoid errors when rewriting already rewritten stacktrace ([#21269](vitejs/vite#21269)) ([98d9a33](vitejs/vite@98d9a33)) - update rolldown to 1.0.0-beta.55 ([#21300](vitejs/vite#21300)) ([2c8db85](vitejs/vite@2c8db85)) - update rolldown to 1.0.0-beta.54 ([#21267](vitejs/vite#21267)) ([c751172](vitejs/vite@c751172)) - add a warning that is output when a plugin sets esbuild related options ([#21218](vitejs/vite#21218)) ([200646b](vitejs/vite@200646b)) - highly experimental full bundle mode ([#21235](vitejs/vite#21235)) ([83d8c99](vitejs/vite@83d8c99)) - print esbuild options when both esbuild and oxc options are set ([#21216](vitejs/vite#21216)) ([08ae87b](vitejs/vite@08ae87b)) - update default browser target ([#21193](vitejs/vite#21193)) ([8c3dd06](vitejs/vite@8c3dd06)) - the epic `rolldown-vite` merge ([#21189](vitejs/vite#21189)) ([4a7f8d4](vitejs/vite@4a7f8d4)) ##### Bug Fixes - **deps:** update all non-major dependencies ([#21786](vitejs/vite#21786)) ([eaa4352](vitejs/vite@eaa4352)) - use `watch.watcher` instead of `watch.notify` ([#21793](vitejs/vite#21793)) ([88953b3](vitejs/vite@88953b3)) - **css:** apply `server.origin` to public file URLs in CSS (fix [#18457](vitejs/vite#18457)) ([#21697](vitejs/vite#21697)) ([c967f48](vitejs/vite@c967f48)) - **deps:** update all non-major dependencies ([#21732](vitejs/vite#21732)) ([5c921ca](vitejs/vite@5c921ca)) - **dev:** disable extglobs for consistency ([#21745](vitejs/vite#21745)) ([1958eeb](vitejs/vite@1958eeb)) - **lib:** keep annotation comments for es output ([#21740](vitejs/vite#21740)) ([dd3c4f4](vitejs/vite@dd3c4f4)) - **optimizer:** avoid error happening with a package with asset entrypoint ([#21766](vitejs/vite#21766)) ([f7e1d07](vitejs/vite@f7e1d07)) - **ssr:** throw friendly error when calling `ssrLoadModule` with non-runnable ssr env ([#21739](vitejs/vite#21739)) ([1fa736e](vitejs/vite@1fa736e)) - **types:** remove extends ImportMeta from ModuleRunnerImportMeta ([#21710](vitejs/vite#21710)) ([0176d45](vitejs/vite@0176d45)) - **wasm:** reset assetUrlRE.lastIndex before .test() in SSR builds ([#21780](vitejs/vite#21780)) ([3a0d8d9](vitejs/vite@3a0d8d9)) - **deps:** update all non-major dependencies ([#21691](vitejs/vite#21691)) ([521fdc0](vitejs/vite@521fdc0)) - **optimizer:** avoid duplicate modules when `preserveSymlinks` is enabled ([#21720](vitejs/vite#21720)) ([72165e0](vitejs/vite@72165e0)) - **dev:** only treat EADDRINUSE as port conflict in wildcard pre-check ([#21642](vitejs/vite#21642)) ([e54e25f](vitejs/vite@e54e25f)) - **dev:** prevent concurrent server restarts ([#21636](vitejs/vite#21636)) ([8ce23a3](vitejs/vite@8ce23a3)) - **dev:** return "502 Bad Gateway" on proxy failures instead of 500 ([#21652](vitejs/vite#21652)) ([e240df2](vitejs/vite@e240df2)) - clear tsconfig cache only when tsconfig.json is cached ([#21622](vitejs/vite#21622)) ([50c9675](vitejs/vite@50c9675)) - **deps:** update all non-major dependencies ([#21594](vitejs/vite#21594)) ([becdc5d](vitejs/vite@becdc5d)) - **lib:** CSS injection point error with nested name IIFE output ([#21606](vitejs/vite#21606)) ([5003de6](vitejs/vite@5003de6)) - **module-runner:** incorrect column with `sourcemapInterceptor: "prepareStackTrace"` ([#21562](vitejs/vite#21562)) ([416c095](vitejs/vite@416c095)) - **module-runner:** prevent crash on negative column in stacktrace ([#21585](vitejs/vite#21585)) ([a075590](vitejs/vite@a075590)) - rolldownOptions/rollupOptions merging at environment level ([#21612](vitejs/vite#21612)) ([db2ecc7](vitejs/vite@db2ecc7)) - **scanner:** respect tsconfig.json ([#21547](vitejs/vite#21547)) ([c6c04db](vitejs/vite@c6c04db)) - avoid registering customization hook for import meta resolver multiple times ([#21518](vitejs/vite#21518)) ([8bb3203](vitejs/vite@8bb3203)) - **config:** avoid watching rolldown runtime virtual module ([#21545](vitejs/vite#21545)) ([d18b139](vitejs/vite@d18b139)) - **deps:** update all non-major dependencies ([#21540](vitejs/vite#21540)) ([9ebaeaa](vitejs/vite@9ebaeaa)) - populate originalFileNames when resolving CSS asset paths ([#21542](vitejs/vite#21542)) ([8b47ff7](vitejs/vite@8b47ff7)) - **deps:** update all non-major dependencies ([#21488](vitejs/vite#21488)) ([2b32ca2](vitejs/vite@2b32ca2)) - disable `tsconfig` option when loading config ([#21517](vitejs/vite#21517)) ([5025c35](vitejs/vite@5025c35)) - **optimizer:** map relative `new URL` paths to correct relative file location ([#21434](vitejs/vite#21434)) ([ca96cbc](vitejs/vite@ca96cbc)) - avoid using deprecated `output.inlineDynamicImport` option ([#21464](vitejs/vite#21464)) ([471ce62](vitejs/vite@471ce62)) - use separate hook object for each environment ([#21472](vitejs/vite#21472)) ([66347f6](vitejs/vite@66347f6)) - **deps:** update all non-major dependencies ([#21440](vitejs/vite#21440)) ([1835995](vitejs/vite@1835995)) - **dev:** avoid event emitter leak caused by `server.listen` callback ([#21451](vitejs/vite#21451)) ([602d786](vitejs/vite@602d786)) - lazy hook filter should work ([#21443](vitejs/vite#21443)) ([bc0c207](vitejs/vite@bc0c207)) - **optimizer:** skip `rolldownCjsExternalPlugin` for `platform: neutral` ([#21452](vitejs/vite#21452)) ([d2fc4be](vitejs/vite@d2fc4be)) - **deps:** update all non-major dependencies ([#21389](vitejs/vite#21389)) ([30f48df](vitejs/vite@30f48df)) - **deps:** update esbuild peerDependency version ([#21398](vitejs/vite#21398)) ([4266c97](vitejs/vite@4266c97)) - **hmr:** trigger prune event when last import is removed ([#20781](vitejs/vite#20781)) ([#21093](vitejs/vite#21093)) ([7576735](vitejs/vite@7576735)) - **module-runner:** use `process.getBuiltinModule` instead of `import('node:module')` ([#21402](vitejs/vite#21402)) ([6633bcb](vitejs/vite@6633bcb)) - support .env file mounts (FIFOs) ([#21365](vitejs/vite#21365)) ([6e6f82a](vitejs/vite@6e6f82a)) - **css:** stylus Evaluator support ([#21376](vitejs/vite#21376)) ([cf9ace1](vitejs/vite@cf9ace1)) - **deps:** update all non-major dependencies ([#21321](vitejs/vite#21321)) ([9bc7c2e](vitejs/vite@9bc7c2e)) - **import-analysis:** avoid cjs interop for built browser external module ([#21333](vitejs/vite#21333)) ([dc5a2fb](vitejs/vite@dc5a2fb)) - **worker:** handle `new Worker(..., new URL(import.meta.url))` with trailing comma ([#21325](vitejs/vite#21325)) ([4a47241](vitejs/vite@4a47241)) - detect `import.meta.resolve` when formatted across multiple lines ([#21312](vitejs/vite#21312)) ([130e718](vitejs/vite@130e718)) - allow no-cors requests for non-script tag requests ([#21299](vitejs/vite#21299)) ([ef3d596](vitejs/vite@ef3d596)) - **deps:** update all non-major dependencies ([#21285](vitejs/vite#21285)) ([4635b2e](vitejs/vite@4635b2e)) - unreachable error when building with `experimental.bundledDev` is enabled ([#21296](vitejs/vite#21296)) ([e81c183](vitejs/vite@e81c183)) - **deps:** update all non-major dependencies ([#21231](vitejs/vite#21231)) ([859789c](vitejs/vite@859789c)) - don't strip base from imports ([#21221](vitejs/vite#21221)) ([7da742b](vitejs/vite@7da742b)) - allow exiting process before optimizer cleanup is done ([#21170](vitejs/vite#21170)) ([55ceffc](vitejs/vite@55ceffc)) - plugin shortcut support ([#21211](vitejs/vite#21211)) ([6a3aca0](vitejs/vite@6a3aca0)) ##### Performance Improvements - **ssr:** skip circular import check for already-evaluated modules ([#21632](vitejs/vite#21632)) ([235140b](vitejs/vite@235140b)) - use tsconfig cache for oxc transform in dev ([#21643](vitejs/vite#21643)) ([57ff177](vitejs/vite@57ff177)) ##### Documentation - bulk of typo fixes ([#21507](vitejs/vite#21507)) ([80755da](vitejs/vite@80755da)) - update `build.dynamicImportVarsOptions` ([#21477](vitejs/vite#21477)) ([54ce2ed](vitejs/vite@54ce2ed)) - clarify the pronunciation of `vite` in IPA symbols ([#21238](vitejs/vite#21238)) ([9b1d4d6](vitejs/vite@9b1d4d6)) - ensure https links ([#21266](vitejs/vite#21266)) ([2eb259a](vitejs/vite@2eb259a)) ##### Miscellaneous Chores - **deps-dev:** bump rollup from 4.57.1 to 4.59.0 ([#21717](vitejs/vite#21717)) ([25227bb](vitejs/vite@25227bb)) - **deps:** update dependency cac to v7 ([#21788](vitejs/vite#21788)) ([44e33ae](vitejs/vite@44e33ae)) - **deps:** update dependency rolldown-plugin-dts to ^0.22.2 ([#21731](vitejs/vite#21731)) ([d8ea652](vitejs/vite@d8ea652)) - **deps:** remove `fdir` and `@rollup/plugin-commonjs` ([#21639](vitejs/vite#21639)) ([5abffd5](vitejs/vite@5abffd5)) - **deps:** update dependency [@rollup/plugin-alias](https://github.com/rollup/plugin-alias) to v6 ([#21097](vitejs/vite#21097)) ([44b5bdf](vitejs/vite@44b5bdf)) - fix broken link for future deprecations ([#21603](vitejs/vite#21603)) ([25f4501](vitejs/vite@25f4501)) - update `customResolver` deprecation message to mention `enforce: 'pre'` ([#21576](vitejs/vite#21576)) ([2ce34d5](vitejs/vite@2ce34d5)) - update rolldown-plugin-dts to 0.22.1 ([#21559](vitejs/vite#21559)) ([77aab4b](vitejs/vite@77aab4b)) - **deps:** update dependency rolldown-plugin-dts to ^0.21.8 ([#21539](vitejs/vite#21539)) ([33881cb](vitejs/vite@33881cb)) - add missing versions to changelog ([#21515](vitejs/vite#21515)) ([4bfb239](vitejs/vite@4bfb239)) - **deps:** update rolldown-related dependencies ([#21487](vitejs/vite#21487)) ([5863e51](vitejs/vite@5863e51)) - **deps:** update rolldown-related dependencies ([#21390](vitejs/vite#21390)) ([be9dd4e](vitejs/vite@be9dd4e)) - fix typo in plugin.ts comment ([#21435](vitejs/vite#21435)) ([d31fc66](vitejs/vite@d31fc66)) - replace caniuse link for ES2024 ([#21355](vitejs/vite#21355)) ([2ba4e99](vitejs/vite@2ba4e99)) - cleanup changelog ([#21202](vitejs/vite#21202)) ([8c8c56e](vitejs/vite@8c8c56e)) - **deps:** update rolldown-related dependencies ([#21230](vitejs/vite#21230)) ([9349446](vitejs/vite@9349446)) - fix spelling error ([#21223](vitejs/vite#21223)) ([cc10e20](vitejs/vite@cc10e20)) ##### Code Refactoring - don't add `optimization.inlineConst: { mode: 'smart' }` as it's enabled by default ([#21794](vitejs/vite#21794)) ([22b3d11](vitejs/vite@22b3d11)) - enable some native plugins even with enable native plugin false ([#21744](vitejs/vite#21744)) ([fc46c79](vitejs/vite@fc46c79)) - avoid deprecated `legalComments` option ([#21721](vitejs/vite#21721)) ([e06496e](vitejs/vite@e06496e)) - use `ESTree` types from `rolldown/utils` ([#21719](vitejs/vite#21719)) ([9239750](vitejs/vite@9239750)) - deprecate `customResolver` in `resolve.alias` ([#21476](vitejs/vite#21476)) ([81275c9](vitejs/vite@81275c9)) - remove unnecessary `@rolldown/pluginutils` ([#21560](vitejs/vite#21560)) ([c367b62](vitejs/vite@c367b62)) - enable some native plugins even with enable native plugin false ([#21608](vitejs/vite#21608)) ([5a4f692](vitejs/vite@5a4f692)) - use `rolldown/utils` ([#21577](vitejs/vite#21577)) ([e56103f](vitejs/vite@e56103f)) - use internal devtools config ([#21609](vitejs/vite#21609)) ([9aea20f](vitejs/vite@9aea20f)) - use parseEnv ([#21586](vitejs/vite#21586)) ([f859d2c](vitejs/vite@f859d2c)) - **wasm:** remove native wasm helper plugin usage ([#21566](vitejs/vite#21566)) ([71a86be](vitejs/vite@71a86be)) - enable some native plugins even with enable native plugin false ([#21511](vitejs/vite#21511)) ([b40292c](vitejs/vite@b40292c)) - remove `experimental.enableNativePlugin: 'resolver'` ([#21510](vitejs/vite#21510)) ([f9d9213](vitejs/vite@f9d9213)) - use `import.meta.dirname` everywhere ([#21509](vitejs/vite#21509)) ([7becf5f](vitejs/vite@7becf5f)) - **optimizer:** simplify `rolldownCjsExternalPlugin` ([#21450](vitejs/vite#21450)) ([ebda8fd](vitejs/vite@ebda8fd)) - remove `import.meta.hot.accept` resolution fallback ([#21382](vitejs/vite#21382)) ([71d0797](vitejs/vite@71d0797)) - **optimizer:** remove dead code ([#21334](vitejs/vite#21334)) ([e9a2cdb](vitejs/vite@e9a2cdb)) ##### Tests - **ssr:** incorrect `handleInvoke` was called in server-worker-runner.invoke test ([#21751](vitejs/vite#21751)) ([b95ca22](vitejs/vite@b95ca22)) - add more type tests for `defineConfig` ([#21698](vitejs/vite#21698)) ([4fedbbd](vitejs/vite@4fedbbd)) - test case for catching invalid package resolution error ([#21601](vitejs/vite#21601)) ([c9b9359](vitejs/vite@c9b9359)) - **bundled-dev:** add worker test cases ([#21557](vitejs/vite#21557)) ([569bc98](vitejs/vite@569bc98)) ##### Beta Changelogs ##### [8.0.0-beta.18](vitejs/vite@v8.0.0-beta.17...v8.0.0-beta.18) (2026-03-09) See [8.0.0-beta.18 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.18/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.17](vitejs/vite@v8.0.0-beta.16...v8.0.0-beta.17) (2026-03-09) See [8.0.0-beta.17 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.17/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.16](vitejs/vite@v8.0.0-beta.15...v8.0.0-beta.16) (2026-02-27) See [8.0.0-beta.16 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.16/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.15](vitejs/vite@v8.0.0-beta.14...v8.0.0-beta.15) (2026-02-19) See [8.0.0-beta.15 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.15/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.14](vitejs/vite@v8.0.0-beta.13...v8.0.0-beta.14) (2026-02-12) See [8.0.0-beta.14 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.14/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.13](vitejs/vite@v8.0.0-beta.12...v8.0.0-beta.13) (2026-02-05) See [8.0.0-beta.13 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.13/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.12](vitejs/vite@v8.0.0-beta.11...v8.0.0-beta.12) (2026-02-03) See [8.0.0-beta.12 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.12/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.11](vitejs/vite@v8.0.0-beta.10...v8.0.0-beta.11) (2026-01-29) See [8.0.0-beta.11 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.11/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.10](vitejs/vite@v8.0.0-beta.9...v8.0.0-beta.10) (2026-01-24) See [8.0.0-beta.10 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.10/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.9](vitejs/vite@v8.0.0-beta.8...v8.0.0-beta.9) (2026-01-22) See [8.0.0-beta.9 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.9/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.8](vitejs/vite@v8.0.0-beta.7...v8.0.0-beta.8) (2026-01-15) See [8.0.0-beta.8 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.8/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.7](vitejs/vite@v8.0.0-beta.6...v8.0.0-beta.7) (2026-01-08) See [8.0.0-beta.7 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.7/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.6](vitejs/vite@v8.0.0-beta.5...v8.0.0-beta.6) (2026-01-07) See [8.0.0-beta.6 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.6/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.5](vitejs/vite@v8.0.0-beta.4...v8.0.0-beta.5) (2025-12-25) See [8.0.0-beta.5 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.5/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.4](vitejs/vite@v8.0.0-beta.3...v8.0.0-beta.4) (2025-12-22) See [8.0.0-beta.4 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.4/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.3](vitejs/vite@v8.0.0-beta.2...v8.0.0-beta.3) (2025-12-18) See [8.0.0-beta.3 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.3/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.2](vitejs/vite@v8.0.0-beta.1...v8.0.0-beta.2) (2025-12-12) See [8.0.0-beta.2 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.2/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.1](vitejs/vite@v8.0.0-beta.0...v8.0.0-beta.1) (2025-12-08) See [8.0.0-beta.1 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.1/packages/vite/CHANGELOG.md) ##### [8.0.0-beta.0](vitejs/vite@v7.2.4...v8.0.0-beta.0) (2025-12-03) See [8.0.0-beta.0 changelog](https://github.com/vitejs/vite/blob/v8.0.0-beta.0/packages/vite/CHANGELOG.md) ##### Rolldown-Vite changelogs See [rolldown-vite changelog](https://github.com/vitejs/rolldown-vite/blob/v7.2.10/packages/vite/CHANGELOG.md) </details> --- ### Configuration 📅 **Schedule**: Branch creation - 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Add wasm support for test and SSR

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upsuper changed the title ~~Add wasm support for test and SSR~~ feat: Add wasm support for test and SSR Nov 10, 2025

upsuper changed the title ~~feat: Add wasm support for test and SSR~~ feat: add wasm support for test and SSR Nov 10, 2025

upsuper added 4 commits November 10, 2025 16:32

fix

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handle windows and unix path

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sapphi-red added p2-nice-to-have Not breaking anything but nice to have (priority) feat: ssr feat: wasm labels Nov 11, 2025

upsuper added 2 commits November 12, 2025 12:09

correctly handle ssr build

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Merge branch 'main' into wasm-node

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add build tests to verify assets

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upsuper added 2 commits November 26, 2025 08:01

Merge branch 'main' into wasm-node

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handle wasm init specially

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upsuper added 2 commits December 3, 2025 10:37

Merge branch 'main' into wasm-node

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update express in ssr-wasm

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sapphi-red changed the title ~~feat: add wasm support for test and SSR~~ feat(wasm): add SSR support for .wasm?init Dec 12, 2025

upsuper added 2 commits December 12, 2025 22:11

Merge branch 'main' into wasm-node

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remove vitest tests

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upsuper added 2 commits December 12, 2025 22:23

update dependencies

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Merge branch 'main' into wasm-node

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shulaoda mentioned this pull request Feb 5, 2026

refactor(wasm): remove native wasm helper plugin usage #21566

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shulaoda marked this pull request as draft February 5, 2026 09:08

Merge branch 'main' into wasm-node

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shulaoda mentioned this pull request Feb 5, 2026

chore: remove rolldown_plugin_vite_wasm_helper rolldown/rolldown#8207

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refactor: use perEnvironmentPlugin and add renderChunk filter

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sapphi-red approved these changes Feb 9, 2026

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sapphi-red merged commit 216a3b5 into vitejs:main Feb 9, 2026
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upsuper deleted the wasm-node branch February 9, 2026 09:56

rayglover-ibm added a commit to rayglover-ibm/vite-wasm-template that referenced this pull request Mar 14, 2026

vite now supports SSR for .wasm?init (see: vitejs/vite#21102) - remov…

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