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fix(vite-dev-server): exclude CT specs from Vite 8 JSX refresh (#33751)

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* fix(vite-dev-server): exclude CT specs from Vite 8 JSX refresh

Prevents duplicate describe/it registration in headed mode when specs define
local React components (HMR self-accept). Sets oxc.jsxRefreshExclude for Vite 8.

Fixes #33750

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(vite-dev-server): scope jsxRefreshInclude so CSS is not transformed by Oxc

Pair jsxRefreshExclude with a script-only jsxRefreshInclude pattern; Vite's
createFilter(undefined, exclude) otherwise matches all non-spec assets.

Add unit tests including CSS path regression coverage.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Bill Glesias
2026-05-06 12:55:45 -04:00
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parent d96f158f14
commit d9b2be464b
3 changed files with 62 additions and 1 deletions
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**Bugfixes:**
- Fixed an issue where component specs that defined local React components could register every `describe` / `it` block twice in `cypress open` when using Vite 8, because React refresh treated those specs as HMR self-accepting modules. `@cypress/vite-dev-server` now excludes component spec files from JSX refresh while leaving Fast Refresh enabled for application source. Fixes [#33750](https://github.com/cypress-io/cypress/issues/33750).
- Fixed an issue where multi-origin tests using [`cy.origin`](https://docs.cypress.io/api/commands/origin) could fail to talk to a secondary origin after test isolation, when the spec-bridge iframe was already present, or when more than one secondary origin became ready around the same time. Cached spec-bridge window targets are now cleared at the correct lifecycle points, improving performance of specs with cy.origin calls. Addressed in [#33704](https://github.com/cypress-io/cypress/pull/33704).
- Fixed an issue where a CSS selector built internally from element attributes could throw an uncaught `Syntax error, unrecognized expression` and crash the runner when an attribute value contained CSS-special characters (for example, an `<input>` with a `pattern` attribute containing regex metacharacters). Fixes [#26967](https://github.com/cypress-io/cypress/issues/26967) and [#29345](https://github.com/cypress-io/cypress/issues/29345).
- Fixed an issue where transient HTTP 500 responses from Cypress Cloud were not retried for idempotent requests. Fixed in [#33718](https://github.com/cypress-io/cypress/pull/33718).