[Raju Ahmed (raju-opti)]

Summary

Follow-up to #1186. tests/browser now runs browser and UMD tests in CI, so this removes the setup it replaced, plus leftovers from the Karma era.

• Remove the old root browser/UMD setup.
  • Deleted: vitest.browser.config.mts, vitest.umd.config.mts, scripts/run-browser-tests.js, scripts/run-umd-tests.js, scripts/patch-vitest-viewport.js, vitest/umd-plugin.ts.
  • Root package.json: removed the test-browser* / test-umd* scripts and the @vitest/browser, browserstack-local and webdriverio devDependencies.
  • Root lockfile: 220 entries removed, none added. npm uninstall alone would have kept @vitest/browser/webdriverio and their dependencies as optional peers of the root Vitest, so those were pruned too. Re-resolving moved @babel/runtime from 7.28.4 to 7.29.13 (in range).
• Make tests/browser self-contained. It no longer imports from the root vitest/ folder, which is gone.
  • The request logger and public/console-capture.js moved into it.
  • The console-capture plugin was merged into the local one: it keeps the /__vitest_console__ endpoint and injects the script via transformIndexHtml.
  • The UMD bundle is copied to tests/browser/public/dist, which is gitignored via dist/.
• Remove Karma leftovers.
  • Deleted lib/index.browser.umdtests.js. Nothing ran it, and two of its imports no longer exist.
  • Removed the *.umdtests.js patterns from .eslintignore, both tsconfigs, .platform-isolation.config.js and scripts/platform-utils.js.
  • Removed the BROWSER_STACK_* env var fallbacks and the commented-out crossbrowser_and_umd_unit_tests CI job.
• Update docs and comments.
  • Comments and the tests/browser README describe the current setup instead of comparing it with the removed one.
  • vitest3-compat.setup.ts is renamed to restore-all-mocks.setup.ts.
  • The root README's testing section points to tests/browser.
  • CHANGELOG.md keeps its historical entries.

No SDK source changes.

Test plan

• Root:
  • npm run validate-platform-isolation: passes.
  • npm run lint: 0 errors.
  • npm run test-vitest: 1128 passed.
  • npm run test-mocha: 815 passing.
• tests/browser, local Chrome:
  • Full suite: 1026/1026.
  • npm run test-umd-local (full rolldown build, bundle copied to public/dist): 2/2.
  • Console capture and request logger (VITEST_CONSOLE_CAPTURE / VITEST_REQUEST_LOGGER): both work from their new location.
• A repo-wide search finds no references to the removed files, Vitest 3, Karma, umdtests or BROWSER_STACK outside CHANGELOG.md and lockfiles.
• BrowserStack: covered by this PR's CI run (browser_tests job).

Issues

• FSSDK-13413

🤖 Generated with Claude Code

[Coveralls (coveralls)]

coverage: 77.513%. remained the same — raju/remove-old-browser-tests into master

[Copilot]

🟢 Approval recommended

No active review issues remain for the browser-test consolidation.

No open issues 🎉

What changed in this PR

Completes the browser-test migration from #1186 by removing the superseded root setup and consolidating test support under tests/browser. No SDK runtime code changes.

Changes:

• Removes obsolete browser/UMD runners, configs, dependencies, and Karma leftovers.
• Moves logging utilities and public assets into tests/browser, including the UMD bundle destination.
• Updates testing documentation and comments to describe the current setup.

File	Description
vitest/​umd-plugin.ts	Deletes the obsolete root UMD plugin.
vitest/​console-capture-plugin.ts	Deletes the superseded root console-capture plugin.
vitest.umd.config.mts	Deletes the old root UMD configuration.
vitest.browser.config.mts	Deletes the old root browser configuration.
tsconfig.spec.json	Removes the obsolete UMD test exclusion.
tsconfig.json	Removes the obsolete UMD test exclusion.
tests/​browser/​vitest.umd.config.mts	Updates the bundle-location comment.
tests/​browser/​vitest.shared.mts	Uses local assets and renamed setup; removes legacy credential fallbacks.
tests/​browser/​vitest.browser.config.mts	Imports the request logger locally.
tests/​browser/​umd-plugin.ts	Updates comments for the current setup.
tests/​browser/​run.js	Copies the UMD bundle locally and removes legacy credential fallbacks.
tests/​browser/​restore-all-mocks.setup.ts	Renames the mock-reset setup and clarifies comments.
tests/​browser/​request-logger-plugin.ts	Relocates request logging into the browser project.
tests/​browser/​README.md	Documents current commands, environment variables, and setup.
tests/​browser/​public/​console-capture.js	Relocates the browser console-capture script.
tests/​browser/​package.json	Updates the project description.
tests/​browser/​legacy-polyfills-plugin.ts	Removes historical comparisons from comments.
tests/​browser/​console-capture-plugin.ts	Implements the logging endpoint locally while retaining script injection.
scripts/​run-umd-tests.js	Deletes the obsolete UMD runner.
scripts/​run-browser-tests.js	Deletes the obsolete browser runner.
scripts/​platform-utils.js	Removes the legacy UMD test exclusion.
scripts/​patch-vitest-viewport.js	Deletes the obsolete viewport workaround.
README.md	Directs contributors to tests/browser.
package.json	Removes root browser/UMD scripts and dependencies.
package-lock.json	Prunes obsolete dependencies and updates Babel runtime.
lib/​index.browser.umdtests.js	Deletes unused Karma-era UMD tests.
.platform-isolation.config.js	Removes the legacy UMD test exclusion.
.github/​workflows/​javascript.yml	Removes a commented-out job and updates setup comments.
.eslintignore	Removes the obsolete UMD test ignore pattern.

_{Review effort: Balanced}