fix: filter large user-supplied config values from the cloud API

[tgriesser]

Additional details

Deals with situations where larger than expected config values are coming through to the Cloud APIs inadvertently for certain route paths.

Steps to test

Added test

How has the user experience changed?

Fixes API errors for large serialized webpack configs

PR Tasks

• Have tests been added/updated?
• Has a PR for user-facing changes been opened in cypress-documentation?
• Have API changes been updated in the type definitions?

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Note

Filters oversized user-supplied config fields before sending instance tests to Cloud, adding a sanitizing util, tests, and a changelog entry.

• Backend (Cloud API/server):
  • postInstanceTests now sanitizes config before sending by using filterRuntimeConfigForRecoding.
  • Added filterRuntimeConfigForRecoding in packages/server/lib/config.ts to strip arbitrarily large fields (omits rawJson, collapses large env values except booleans, and replaces devServer.webpackConfig/viteConfig with omitted; mirrors handling in resolved.env).
  • Updated unit tests in packages/server/test/unit/cloud/api/api_spec.js to validate filtered payload and preserve boolean env values.
• Changelog:
  • Notes bugfix for issues caused by unexpectedly large config values when recording to Cypress Cloud.

^{Written by Cursor Bugbot for commit 0a7bd3c. This will update automatically on new commits. Configure here.}

[cypress]

cypress    Run #67403

Run Properties:   Failed #67403  •  0a7bd3c37c: Merge branch 'develop' into tgriesser/fix/filter-large-user-supplied-values

Project	cypress
Branch Review	tgriesser/fix/filter-large-user-supplied-values
Run status	Failed #67403
Run duration	19m 23s
Commit	0a7bd3c37c: Merge branch 'develop' into tgriesser/fix/filter-large-user-supplied-values
Committer	Tim Griesser
View all properties for this run ↗︎

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Test results
Failures	2
Flaky	7
Pending	1022
Skipped	4
Passing	21048
View all changes introduced in this branch ↗︎

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Warning

Partial Report: The results for the Application Quality reports may be incomplete.

UI Coverage  45.48%
Untested elements	188
Tested elements	161

Accessibility  97.98%
Failed rules	4 critical   8 serious   2 moderate   2 minor
Failed elements	101

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Tests for review

  cypress/e2e/error-handling.cy.ts • 2 failed tests • launchpad-e2e

View Output

Test		Artifacts
... > automatically sources vite.config.js		Test Replay Screenshots
... > automatically sources webpack.config.js		Test Replay Screenshots

  commands/net_stubbing.cy.ts • 1 flaky test • 5x-driver-firefox

View Output

Test		Artifacts
... > stops waiting when an xhr request is canceled		</td> </tr></table>   commands/files.cy.js • 1 flaky test • 5x-driver-firefox View Output Test Artifacts src/cy/commands/files > #readFile > retries to read when ENOENT </td> </tr></table>   issues/28527.cy.ts • 1 flaky test • 5x-driver-firefox View Output Test Artifacts issue 28527 > fails and then retries and verifies about:blank is not displayed Screenshots   issues/28527.cy.ts • 1 flaky test • 5x-driver-electron View Output Test Artifacts issue 28527 > fails and then retries and verifies about:blank is not displayed Test Replay Screenshots   e2e/origin/config_env.cy.ts • 1 flaky test • 5x-driver-inject-document-domain-chrome:beta View Output Test Artifacts cy.origin- Cypress.config() > serializable > overwrites different values in secondary if one exists in the primary Test Replay The first 5 flaky specs are shown, see all 7 specs in Cypress Cloud.