Issues

• coverage-v8: the merged startOffset comes from the last coverage file read, so one stray entry with startOffset: 0 shifts a file's whole coverage map

  vitest-dev/vitest#11944 · Filter by author armaxri opened on Nov 11, 2026

• Vitest 5.1.0 declarations import ESTree from Vite, breaking type-checking with Vite 7

  pending triage
  Bug

  vitest-dev/vitest#11942 · Filter by author spike-rabbit opened on Nov 11, 2026

• Browser Mode: tests with the same name in different files fail with "tracing.stopChunk: file data stream has unexpected number of bytes"

  vitest-dev/vitest#11941 · Filter by author psalaberria002 opened on Nov 11, 2026
  2

• context.signal stays aborted in retries after a timeout

  Bug

  vitest-dev/vitest#11938 · Filter by author sheremet-va opened on Nov 11, 2026
  

• Component that makes side effect requests triggers deps optimization mid-run, causing all tests to timeout.

  pending triage
  Bug

  vitest-dev/vitest#11937 · Filter by author smeng9 opened on Nov 10, 2026

• Timeout during test context setup makes all retries fail

  pending triage
  Bug

  vitest-dev/vitest#11932 · Filter by author pgoldberg opened on Nov 10, 2026
  1

• A fixture named task breaks expect from the test context

  p2-edge-case
  Bug

  vitest-dev/vitest#11929 · Filter by author sheremet-va opened on Nov 10, 2026
  1

• browser-playwright: userEvent.keyboard fails with Cannot find "vitest-iframe" on the page when Playwright has the test frame attached but not yet named

  vitest-dev/vitest#11928 · Filter by author kNoAPP opened on Nov 10, 2026

• Closing rpc while "onAfterSuiteRun" was pending when another RPC call fails during teardown

  vitest-dev/vitest#11925 · Filter by author TrevorBurnham opened on Nov 9, 2026

• coverage-v8: one statement gets two end columns when node and browser projects load the same file

  feat: coverageupstream
  vitest-dev/vitest#11921 · Filter by author sumanthratna opened on Nov 9, 2026
  1

• vitest related skips tests that import the changed file with a query suffix (?raw)

  vitest-dev/vitest#11917 · Filter by author mollydoo opened on Nov 8, 2026

• With isolate: false, a reused worker retains the provided context of every previous task

  pending triage
  Bug

  vitest-dev/vitest#11916 · Filter by author elierotenberg opened on Nov 8, 2026

• forks pool: worker survives a killed vitest process while a test runs a synchronous loop

  p2-edge-case
  vitest-dev/vitest#11915 · Filter by author janosh opened on Nov 8, 2026
  3

  

• %% in a test.each / describe.each / test.for title consumes a parameter

  vitest-dev/vitest#11913 · Filter by author trackoor opened on Nov 7, 2026
  1

• Forks pool with isolate: false reuses a runner after start_failure and attaches a second exit listener ("Worker exited unexpectedly with signal SIGTERM during stopping state")

  p2-edge-case
  vitest-dev/vitest#11912 · Filter by author mshll opened on Nov 7, 2026
  1

  

• Browser Mode: since 5.1, actions advance fake timers for their whole duration, so frozen-clock tests depend on machine load

  vitest-dev/vitest#11910 · Filter by author ceolinwill opened on Nov 7, 2026

• vi.mock factories fail under Cloudflare Workers since 5.1.0 (AsyncLocalStorage#disable() is not implemented)

  vitest-dev/vitest#11907 · Filter by author ybbuc opened on Nov 6, 2026
  1

• fsModuleCache: parallel runs still fail with ENOTEMPTY on Windows when clearing an outdated cache

  vitest-dev/vitest#11901 · Filter by author adityankale190895 opened on Nov 6, 2026
  1

• .js deps resolved to file:// URLs are never externalized on Linux/macOS

  pending triage
  Bug

  vitest-dev/vitest#11898 · Filter by author rvlo opened on Nov 5, 2026

• viteModuleRunner: false silently skips vi.mock in files that use using or import attributes (bundled acorn 8.11.3)

  vitest-dev/vitest#11897 · Filter by author ryoppippi opened on Nov 5, 2026

• provide/inject can't serialize Set

  pending triage
  Bug

  vitest-dev/vitest#11895 · Filter by author jendrikw opened on Nov 5, 2026
  2

• Docs: importOriginal return type is missing Promise

  documentation
  vitest-dev/vitest#11894 · Filter by author adityareddy-dev opened on Nov 5, 2026

• test.env turns undefined values into the string "undefined"

  vitest-dev/vitest#11886 · Filter by author everton-dgn opened on Nov 5, 2026
  2

• Windows: module evaluator createRequire throws ERR_INVALID_ARG_VALUE for rootless file:/// URLs of virtual modules (vitest 4)

  vitest-dev/vitest#11883 · Filter by author langyo opened on Nov 5, 2026

• Browser Mode: getByRole misses columnheader and rowheader on <th> without scope="col"/"row"

  vitest-dev/vitest#11882 · Filter by author sumanthratna opened on Nov 5, 2026