API review items

Playwright 1.65 API review, range v1.64.0..main (head f1327a594), snapshot 2026-10-29.

1. Inert elements and content outside a modal are hidden

PR #43211, Issue #36938, Issue #42967, #36947, #37137

• keep not inert actionability check, extend it to selectOption()

• revert inert as aria-hidden

• remove <dialog> handling

• Docs: Actionability is covered. Missing: a note on the role locator and aria snapshot pages that inert and non-modal content is excluded, and a decision on whether the two PLAYWRIGHT_SKIP_* env vars are supported (then document them) or temporary. Needs a prominent release-notes entry; this will change existing toHaveCount, toMatchAriaSnapshot and click behavior in apps that use modal dialogs.

6. MCP test tools that run code or write files no longer report readOnlyHint

PR #43692, Issue #43699

• revert

• Docs: Regenerates at release. Worth one release-notes line because it changes client approval prompts.

8. Failures reporter, onlyFailures and --reporter-only-failures

PR #42766, Issue #42702

• drop --reporter-only-failures
• does onlyFailures option in the html/json/junit include flaky tests? clarify in the docs

9. Reporter secrets option

PR #43334, Issue #38673

• should trim titles at the end instead of in the worker, so that redacting works - double check that, add a test
  • support .env file in addition to name/value pairs
  • secrets are redacted from all plain-text attachments
  • all zip or binary attachments containing secrets are skipped by the reporter, perhaps an annotation is added to indicate that
  • docs explain the situation with the trace explicitly - it will be skipped unless you pass secrets to the trace options as well

10. Trace secrets option; trace stores fewer context options

PR #43423, PR #43220, Issue #38673

• support .env file in addition to name/value pairs

11. Built-in exclusive lock

PR #43445, Issue #43351

• find a better name for it?

14. PLAYWRIGHT_TRANSFORM_CACHE_DIR environment variable

PR #43733, Issue #43698

• support both PWTEST_CACHE_DIR and PLAYWRIGHT_TRANSFORM_CACHE_DIR, there are existing users already

18. MCP --redact-url-params

PR #43258, playwright-mcp #1791

• make --redact-url-params also work for browser_network_requests and alike

• Docs: Documented in the config type; README needs regeneration at release.