components build: update dependency lighthouse to v12

Some performance audits are marked as informative under passing conditions rather than being hidden in the passed audits section. This release reduces the number of audits which have this behavior. (#16315)

New Audits

ensure clickjacking mitigation through XFO or CSP (#16290)

Core

implement more insight audits, handle localization (#16326)
set relevant metric based on insight category (#16325)
add hidden audits for each insight (#16312)
cls-culprits-insight: implement (#16357)
inspector-issues: support SRI message signature issues (#16345)
inspector-issues: add select element a11y issue to types (#16298)
legacy-javascript: upgrade babel and core-js (#16331)
root-causes: grab from trace insights rather than use protocol (#16352)
trace-engine: re-enable invalidations handler (#16293)

Report

use container queries for responsive design in DevTools (#16342)
render LH-only diagnostics alongside insights (#16332)
add button to toggle experimental insights (#16329)
add checklist detail type (#16324)

Deps

upgrade critical dependencies (#16358)
upgrade csp_evaluator to 1.1.5 (#16347)
update to latest chrome-devtools-frontend (#16333)
upgrade puppeteer to 24.2.1 (#16341)
upgrade third-party-web to 0.26.5 (#16340)
upgrade puppeteer to 24.1.1 (#16302)
upgrade trace_engine to 0.0.40 (#16311)

I18n

import (#16360)

Docs

readme: add Sonā to the list of Web Perf services (#16282)

Tests

address upstream changes (#16335)
refresh sample artifacts (#16322)
dbw: revert unload handler expectations (#16353)
devtools: fix error in smoke tests with DT throttling (#16301)

Misc

remove issue assigner (#16317)
ci: workaround new ubuntu 23 security issue for chromium (#16296)
readme: add link to Neodymium (#16349)
release: add script for updating critical dependencies (#16359)
types: add missing type for explanation in NodeValue (#16314)

`v12.3.0`

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Full Changelog

We expect this release to ship in the DevTools of Chrome 133, and to PageSpeed Insights within 2 weeks.

New contributors

Thanks to our new contributors 👽🐷🐰🐯🐻!

Sebastian Neuner @sebastian9er

New Audits

This release adds new security audits. These audits are informative and won't affect your best practices score.

Ensure proper origin isolation with COOP (#16275)
Use a strong HSTS policy (#16257)

Core

font-size: exclude invisible text (#16281)

Deps

upgrade puppeteer to v23.10.4 (#16279)
upgrade trace_engine to 0.0.38 (#16269)

I18n

import (#16283)
inject strings from trace engine npm package (#16272)

Docs

update releasing instructions (#16252)

Tests

update network target type expectations (#16273)
devtools: sync e2e (#16253)

`v12.2.3`

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Full Changelog

This release is only for PageSpeed Insights and we expect it to ship within 2 weeks.

Notable Changes

The CPU throttling factor for PageSpeed Insights has been adjusted (#16256) to account for the low CPU performance benchmarks typical in PageSpeed production environments. In general, TBT metric times for all sites should improve when testing with PageSpeed Insights.

All other Lighthouse clients (Lighthouse CLI, the Node API, Lighthouse panel in DevTools, etc) should not be affected by this change.

Tests

inline-fs: fix error in Node 20 (#16262)

`v12.2.2`

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Full Changelog

We expect this release to ship in the DevTools of Chrome 133, and to PageSpeed Insights within 2 weeks.

New contributors

Thanks to our new contributors 👽🐷🐰🐯🐻!

Nate @servusdei2018
Gareth Jones @G-Rath
JDev @JWebDev

Core

network-monitor: treat EventSource as non-critical (#16225)
target-manager: ignore target if type is unknown (#16221)

CLI

create writeFile destination if necessary (#15990)

Deps

upgrade puppeteer to 23.8.0 (#16248)
upgrade third-party-web to 0.26.1 (#16219)
upgrade puppeteer to 23.5.2 (#16220)
lighthouse-stack-packs: upgrade to 1.12.2 (#16242)
lodash: migrate lodash to lodash-es (#16211)
sentry: upgrade to v7 (#16215)

Clients

lr: set CPU throttling based on benchmark (#16226)
lr: fix wrong render-blocking-resources transfer size (#16190)

I18n

import (#16250)

Docs

readme: add lighthouse-matchers to related projects (#16239)
readme: add Guardius to services list (#16235)

Tests

smoke: fix devtools test runner & a11y errors (#16236)

Misc

ci: upgrade old actions (#16191)

`v12.2.1`

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Full Changelog

We expect this release to ship in the DevTools of Chrome 130, and to PageSpeed Insights within 2 weeks.

Core

third-party-cookies: update description for 3PCD updates (#16177, #16158)
uses-text-compression: ignore percent threshold for large savings (#16165)

Deps

upgrade puppeteer to 23.3.0 (#16178, #16161)
upgrade axe-core to 4.10.0 (#16162)

Clients

devtools: require third-party-web to be provided (#16166)

I18n

support reusing the same placeholder for ICU (#16159)

Tests

pass logger to smokehouse runners to get log even on timeout (#16175)
update BUILD.gn due to upstream CDT change (#16171)
devtools: sync e2e (#16174)
devtools: sync e2e (#16160)

Misc

format lighthouse-result.proto (#16170)

`v12.2.0`

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Full Changelog

We expect this release to ship in the DevTools of Chrome 129, and to PageSpeed Insights within 2 weeks.

Core

import lantern from trace engine (#16092)
long-tasks: link to latest guidance (#16138)
stylesheets: disable transient stylesheet detection (#16121)
third-party-summary: correct blocking time calculation (#16117)
trace-engine-result: disable invalidations handler (#16142)

Deps

upgrade trace_engine to 0.0.32 (#16143)
upgrade puppeteer to 22.15.0 (#16139)
upgrade third-party-web to 0.24.5 (#16140)
upgrade puppeteer to 22.13.1 (#16123)
upgrade typescript to 5.5.3 (#16091)

Tests

devtools: sync e2e (#16120)
treemap: ignore cookie deprecation error (#16141)

Misc

remove alertdesk from README (#16133)
build: update README.chromium when rolling devtools (#16144)

`v12.1.0`

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Full Changelog

We expect this release to ship in the DevTools of Chrome 128, and to PageSpeed Insights within 2 weeks.

New Contributors

Thanks to our new contributors 👽🐷🐰🐯🐻!

Hamir Mahal @hamirmahal
angad-sethi @angad-sethi
Junaid Ramzan @ajuni880

Notable Changes

remove first-meaningful-paint metric (#16047)

Core

move simulator creation and network analysis to lib/lantern (#16003)
handle target crash at any point (#15985)
aria-allowed-role: fix title and description (#16042)
inspector-issues: add shared dictionary issue (#15993)
lantern: refactor to DevTools modules convention (#16071)
lantern: rename files to PascalCase (#16068)
lantern: remove last usages of Lighthouse NetworkRequest (#16067)
lantern: remove usage of Lighthouse constants module (#16062)
lantern: remove all LH types (#16061)
lantern: move tbt-util.js to lib/lantern (#16058)
lantern: separate TraceEngine specific code (#16051)
lantern: extract main thread events w/o TraceProcessor (#16049)
lantern: remove usage of Lighthouse's ProcessedNavigation (#16048)
lantern: use LCP instead of FMP for TTI simulation bounds (#16046)
lantern: use computed artifact to create graph using trace (#16040)
lantern: rename NetworkRequest record to rawRequest (#16037)
lantern: resolve some differences when using trace (#16033)
lantern: create network graph from trace (experimental) (#16026)
network: align headers end time with send when no data received (#16044)
network: fix time units in network quiet calc (#16013)
test: add generatable squoosh trace (#15997)
test: add generatable trace for paint metrics (#15994)
test: add generatable iframe trace (#15995)
types: add missing fields to Result.Category and NodeDetails (#16006)

CLI

stop treating chrome launcher kill() as async (#15998)

Deps

upgrade puppeteer to 22.11.1 (#16070)
upgrade chrome-launcher to 1.1.2 (#16069)
upgrade puppeteer to 22.10.0 (#16054)
upgrade third-party-web to 0.24.3 (#16055)
upgrade axe-core to 4.9.1 (#16056)

I18n

import (#16080)

Docs

remove await from chrome.kill() (#15982)

Tests

use newer traces in network-analyzer-test.js (#16043)
default to 0 for network trace data length (#16041)
update remaining old traces for Lantern (#16039)
use new trace in metrics-test for pwa (#16025)
update many test traces, support .json.gz (#16007)
add timeout to runSmokeTest (#16017)
fix devtools e2e test runner (#16018)
reduce expected value of render-blocking-requests smoke (#16011)
update interactive test trace (#16001)
use new button class name for devtools run script (#15999)
ci: remove reference to deleted smoke test (#16010)
lantern: fix some tests not running (#16073)
lantern: refactor to DevTools test convention (#16072)
lantern: remove usage of devtoolsLog in simulator tests (#16065)
lantern: remove usage of computed SpeedIndex (#16064)
lantern: remove usage of computed PageDependencyGraph (#16063)
lantern: use TraceEngine directly in test fixtures (#16057)
lantern: remove Speedline from Lantern unit test for now (#16060)
lantern: remove devtools log from tests (#16050)

Misc

change connectionId from string to number (#15983)
ci: fix deprecated node usage in checkout@v3 (#16022)
strings: fix WebAuthetication typo (#16028)

`v12.0.0`

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Full Changelog

We expect this release to ship in the DevTools of Chrome 126, and to PageSpeed Insights within 2 weeks.

New Contributors

Thanks to our new contributors 👽🐷🐰🐯🐻!

Ashley Rich @A5hleyRich
MrAdib @JohnAdib

Notable Changes

PWA Category Removal

As per Chrome’s updated Installability Criteria, Lighthouse has removed the PWA category. For future PWA testing, users will be directed to use the updated PWA documentation.

SEO Category Reorganization

The SEO category has been updated to reflect the priorities of Google search in 2024. As such, several audits have been removed or moved to other categories:

The is-crawlable audit is now weighted high enough to fail the SEO category on its own. (#15933)
The viewport and font-size audits are no longer priorities for SEO, but are still important for UX in general so they have been moved to the best practices category. (#15930)
The plugins audit is no longer a priority for SEO and has been removed. (#15928)
The tap-targets audit is no longer a priority for SEO and has been replaced with the target-size audit in accessibility. (#15906)

Overall Savings Deprecation

The overallSavingsMs value on performance diagnostic audits has been deprecated (#15902). We recommend using metricSavings.LCP or metricSavings.FCP to understand the estimated metric savings of performance diagnostics.

🆕 New Audits

The aria-conditional-attr, aria-deprecated-role and aria-prohibited-attr Axe checks have been added to the Lighthouse accessibility category. (#15963)
The redirects-http audit has been brought back, but will only passively check for a http -> https redirect if the provided URL happens to be on http (#13548)

Other Audit Changes

The layout-shifts-elements audit is removed. Improved layout shift information can be found in the layout-shifts audit. (#15931)
The no-unload-listeners audit is removed. Unload listeners are deprecated and are still flagged in the deprecations and bf-cache audits. (#15874)
The duplicate-id-active audit is removed because it's corresponding Axe check is deprecated. (#15900)
The uses-rel-preload and preload-fonts audits have been moved to the experimental config. Preload advice is still on hold and these audits were already in a disabled state. (#15876)

💥 Breaking Changes

split up CSSUsage artifact (#15952)
remove budgets (#15950)
remove relevant audits lists from config (#15878)
remove ScriptElements artifact (#15879)
config: use explicit diagnostic group (#15901)
service-worker: remove service-worker gatherer (#15942)

Core

remove pre-v10 compat for page graph construction (#15948)
a11y: re-enable target-size hidden audit (#15888)
driver: add sendCommandAndIgnore (#15913)
gather: handle crash if CDP target crashes (#11840)
lantern: always use flexible network ordering (#14612)
lantern: remove LR statistics (#15946)
lantern: inline rtt constant (#15944)
lantern: add LanternError and adapter to LH error (#15937)
lantern: correct overlapping tasks in CPU nodes (#15938)
lantern: duplicate isNonNetworkProtocol in lib/lantern (#15936)
lantern: replace usage of LH.Artifacts.ProcessedTrace (#15905)
lantern: move lantern metrics to lib/lantern (#15875)
metric: remove gatherContext mode check (#15899)
render-blocking: use trace engine as the source of truth (#15839)
runner: use early return for readability (#15914)
seo: support Persian in link-text audit (#15949)
target-size: use binary display mode (#15910)

Report

fix hidden audit handling for non-perf categories (#15968)

Deps

upgrade tldts-icann to 6.1.16 (#15967)
upgrade third-party-web to 0.24.2 (#15966)
upgrade puppeteer to 22.6.5 (#15951)

Clients

viewer: stop using legacy DOM api (#15964)

I18n

import (#15958)

Docs

bug-report: require users to read FAQs (#14383)
readme: add DeploymentHawk to the list of integrations (#15847)

Tests

refresh sample artifacts (#15962)
invalidate devtools build cache (#15947)
update network target type expectations (#15916)

Misc

deduplicate all the dom helpers (#15960)
merge changelog from branch-11 (#15957)
remove BenchmarkIndexes base artifact (#15941)
update public gatherer list (#15940)
remove residual lighthouse-cli file (#15935)
use "processing duration" instead of "processing time" for INP (#15893)
treemap: fix column sorting when some values are blank (#15959)

Configuration

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May 24 '25 05:05 angular-robot

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build: update dependency lighthouse to v12

Release Notes

New contributors

Notable Changes

Core

Report

Deps

Docs

Tests

Misc

Core

Notable Changes

Core

Deps

I18n

Tests

Misc

New contributors

Notable Changes

New Audits

Core

Report

Deps

I18n

Docs

Tests

Misc

New contributors

New Audits

Core

Deps

I18n

Docs

Tests

Notable Changes

Tests

New contributors

Core

CLI

Deps

Clients

I18n

Docs

Tests

Misc

Core

Deps

Clients

I18n

Tests

Misc

Core

Deps

Tests

Misc

New Contributors

Notable Changes

Core

CLI

Deps

I18n

Docs

Tests

Misc

New Contributors

Notable Changes

PWA Category Removal

SEO Category Reorganization

Overall Savings Deprecation

🆕 New Audits

Other Audit Changes

💥 Breaking Changes

Core

Report

Deps

Clients

I18n

Docs

Tests

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