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adamraineadamraine
authoredApr 22, 2024··
v12.0.0 (#15970)
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v12.5.1v12.0.0
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‎changelog.md

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<a name="12.0.0"></a>
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# 12.0.0 (2024-04-22)
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[Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v11.7.1...v12.0.0)
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We expect this release to ship in the DevTools of [Chrome 126](https://chromiumdash.appspot.com/schedule), and to PageSpeed Insights within 2 weeks.
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## New Contributors
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Thanks to our new contributors 👽🐷🐰🐯🐻!
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- Ashley Rich @A5hleyRich
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- MrAdib @JohnAdib
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## Notable Changes
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### PWA Category Removal
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As per [Chrome’s updated Installability Criteria](https://developer.chrome.com/blog/update-install-criteria), Lighthouse [has removed the PWA category](https://github.com/GoogleChrome/lighthouse/pull/15455). For future PWA testing, users will be directed to use the [updated PWA documentation](https://developer.chrome.com/docs/devtools/progressive-web-apps/).
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### SEO Category Reorganization
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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:
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* The `is-crawlable` audit is now weighted high enough to fail the SEO category on its own. ([#15933](https://github.com/GoogleChrome/lighthouse/pull/15933))
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* 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](https://github.com/GoogleChrome/lighthouse/pull/15930))
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* The `plugins` audit is no longer a priority for SEO and has been removed. ([#15928](https://github.com/GoogleChrome/lighthouse/pull/15928))
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* The `tap-targets` audit is no longer a priority for SEO and has been replaced with the `target-size` audit in accessibility. ([#15906](https://github.com/GoogleChrome/lighthouse/pull/15906))
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### Overall Savings Deprecation
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The `overallSavingsMs` value on performance diagnostic audits has been deprecated ([#15902](https://github.com/GoogleChrome/lighthouse/pull/15902)). We recommend using `metricSavings.LCP` or `metricSavings.FCP` to understand the estimated metric savings of performance diagnostics.
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### 🆕 New Audits
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* The [`aria-conditional-attr`](https://dequeuniversity.com/rules/axe/4.9/aria-conditional-attr), [`aria-deprecated-role`](https://dequeuniversity.com/rules/axe/4.9/aria-deprecated-role) and [`aria-prohibited-attr`](https://dequeuniversity.com/rules/axe/4.9/aria-prohibited-attr) Axe checks have been added to the Lighthouse accessibility category. ([#15963](https://github.com/GoogleChrome/lighthouse/pull/15963))
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* 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](https://github.com/GoogleChrome/lighthouse/pull/13548))
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### Other Audit Changes
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* The `layout-shifts-elements` audit is removed. Improved layout shift information can be found in the `layout-shifts` audit. ([#15931](https://github.com/GoogleChrome/lighthouse/pull/15931))
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* The `no-unload-listeners` audit is removed. Unload listeners are deprecated and are still flagged in the `deprecations` and `bf-cache` audits. ([#15874](https://github.com/GoogleChrome/lighthouse/pull/15874))
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* The `duplicate-id-active` audit is removed because it's corresponding Axe check is deprecated. ([#15900](https://github.com/GoogleChrome/lighthouse/pull/15900))
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* 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](https://github.com/GoogleChrome/lighthouse/pull/15876))
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## 💥 Breaking Changes
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* split up `CSSUsage` artifact ([#15952](https://github.com/GoogleChrome/lighthouse/pull/15952))
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* remove budgets ([#15950](https://github.com/GoogleChrome/lighthouse/pull/15950))
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* remove relevant audits lists from config ([#15878](https://github.com/GoogleChrome/lighthouse/pull/15878))
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* remove `ScriptElements` artifact ([#15879](https://github.com/GoogleChrome/lighthouse/pull/15879))
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* config: use explicit diagnostic group ([#15901](https://github.com/GoogleChrome/lighthouse/pull/15901))
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* service-worker: remove `service-worker` gatherer ([#15942](https://github.com/GoogleChrome/lighthouse/pull/15942))
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## Core
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* remove pre-v10 compat for page graph construction ([#15948](https://github.com/GoogleChrome/lighthouse/pull/15948))
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* a11y: re-enable target-size hidden audit ([#15888](https://github.com/GoogleChrome/lighthouse/pull/15888))
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* driver: add sendCommandAndIgnore ([#15913](https://github.com/GoogleChrome/lighthouse/pull/15913))
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* gather: handle crash if CDP target crashes ([#11840](https://github.com/GoogleChrome/lighthouse/pull/11840))
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* lantern: always use flexible network ordering ([#14612](https://github.com/GoogleChrome/lighthouse/pull/14612))
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* lantern: remove LR statistics ([#15946](https://github.com/GoogleChrome/lighthouse/pull/15946))
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* lantern: inline rtt constant ([#15944](https://github.com/GoogleChrome/lighthouse/pull/15944))
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* lantern: add LanternError and adapter to LH error ([#15937](https://github.com/GoogleChrome/lighthouse/pull/15937))
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* lantern: correct overlapping tasks in CPU nodes ([#15938](https://github.com/GoogleChrome/lighthouse/pull/15938))
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* lantern: duplicate isNonNetworkProtocol in lib/lantern ([#15936](https://github.com/GoogleChrome/lighthouse/pull/15936))
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* lantern: replace usage of LH.Artifacts.ProcessedTrace ([#15905](https://github.com/GoogleChrome/lighthouse/pull/15905))
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* lantern: move lantern metrics to lib/lantern ([#15875](https://github.com/GoogleChrome/lighthouse/pull/15875))
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* metric: remove gatherContext mode check ([#15899](https://github.com/GoogleChrome/lighthouse/pull/15899))
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* render-blocking: use trace engine as the source of truth ([#15839](https://github.com/GoogleChrome/lighthouse/pull/15839))
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* runner: use early return for readability ([#15914](https://github.com/GoogleChrome/lighthouse/pull/15914))
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* seo: support Persian in link-text audit ([#15949](https://github.com/GoogleChrome/lighthouse/pull/15949))
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* target-size: use binary display mode ([#15910](https://github.com/GoogleChrome/lighthouse/pull/15910))
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## Report
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* fix hidden audit handling for non-perf categories ([#15968](https://github.com/GoogleChrome/lighthouse/pull/15968))
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## Deps
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* upgrade `tldts-icann` to 6.1.16 ([#15967](https://github.com/GoogleChrome/lighthouse/pull/15967))
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* upgrade `third-party-web` to 0.24.2 ([#15966](https://github.com/GoogleChrome/lighthouse/pull/15966))
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* upgrade puppeteer to 22.6.5 ([#15951](https://github.com/GoogleChrome/lighthouse/pull/15951))
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## Clients
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* viewer: stop using legacy DOM api ([#15964](https://github.com/GoogleChrome/lighthouse/pull/15964))
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## I18n
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* import ([#15958](https://github.com/GoogleChrome/lighthouse/pull/15958))
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## Docs
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* bug-report: require users to read FAQs ([#14383](https://github.com/GoogleChrome/lighthouse/pull/14383))
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* readme: add DeploymentHawk to the list of integrations ([#15847](https://github.com/GoogleChrome/lighthouse/pull/15847))
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## Tests
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* refresh sample artifacts ([#15962](https://github.com/GoogleChrome/lighthouse/pull/15962))
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* invalidate devtools build cache ([#15947](https://github.com/GoogleChrome/lighthouse/pull/15947))
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* update network target type expectations ([#15916](https://github.com/GoogleChrome/lighthouse/pull/15916))
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## Misc
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* deduplicate all the dom helpers ([#15960](https://github.com/GoogleChrome/lighthouse/pull/15960))
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* merge changelog from branch-11 ([#15957](https://github.com/GoogleChrome/lighthouse/pull/15957))
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* remove `BenchmarkIndexes` base artifact ([#15941](https://github.com/GoogleChrome/lighthouse/pull/15941))
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* update public gatherer list ([#15940](https://github.com/GoogleChrome/lighthouse/pull/15940))
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* remove residual `lighthouse-cli` file ([#15935](https://github.com/GoogleChrome/lighthouse/pull/15935))
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* use "processing duration" instead of "processing time" for INP ([#15893](https://github.com/GoogleChrome/lighthouse/pull/15893))
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* treemap: fix column sorting when some values are blank ([#15959](https://github.com/GoogleChrome/lighthouse/pull/15959))
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<a name="11.7.1"></a>
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# 11.7.1 (2024-04-08)
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[Full Changelog](https://github.com/GoogleChrome/lighthouse/compare/v11.7.0...v11.7.1)

‎core/test/fixtures/user-flows/reports/sample-flow-result.json

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"steps": [
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{
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"lhr": {
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"lighthouseVersion": "11.7.0",
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"lighthouseVersion": "12.0.0",
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"requestedUrl": "https://www.mikescerealshack.co/",
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"mainDocumentUrl": "https://www.mikescerealshack.co/",
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"finalDisplayedUrl": "https://www.mikescerealshack.co/",
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},
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{
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"lhr": {
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"lighthouseVersion": "11.7.0",
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"lighthouseVersion": "12.0.0",
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"finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
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"fetchTime": "2024-04-18T17:03:07.290Z",
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"gatherMode": "timespan",
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},
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{
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"lhr": {
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"lighthouseVersion": "11.7.0",
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"lighthouseVersion": "12.0.0",
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"finalDisplayedUrl": "https://www.mikescerealshack.co/search?q=call+of+duty",
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"fetchTime": "2024-04-18T17:03:17.899Z",
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"gatherMode": "snapshot",
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},
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{
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"lhr": {
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"lighthouseVersion": "11.7.0",
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"lighthouseVersion": "12.0.0",
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"requestedUrl": "https://www.mikescerealshack.co/corrections",
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"mainDocumentUrl": "https://www.mikescerealshack.co/corrections",
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"finalDisplayedUrl": "https://www.mikescerealshack.co/corrections",

‎core/test/results/sample_v2.json

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{
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"lighthouseVersion": "11.7.0",
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"lighthouseVersion": "12.0.0",
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"requestedUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
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"mainDocumentUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",
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"finalDisplayedUrl": "http://localhost:10200/dobetterweb/dbw_tester.html",

‎docs/plugins.md

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"type": "module",
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"main": "plugin.js",
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"peerDependencies": {
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"lighthouse": "^11.7.0"
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"lighthouse": "^12.0.0"
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},
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"devDependencies": {
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"lighthouse": "^12.0.0"
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}
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}
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```

‎docs/recipes/lighthouse-plugin-example/package.json

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"type": "module",
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"main": "./plugin.js",
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"peerDependencies": {
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"lighthouse": "^12.0.0"
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},
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"devDependencies": {
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"lighthouse": "^8.6.0"

‎package.json

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{
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"name": "lighthouse",
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"type": "module",
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"version": "11.7.0",
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"version": "12.0.0",
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"description": "Automated auditing, performance metrics, and best practices for the web.",
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"main": "./core/index.js",
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"bin": {

‎third-party/devtools-tests/e2e/lighthouse/navigation_test.ts

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// 1 refresh after auditing to reset state
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assert.strictEqual(numNavigations, 5);
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assert.strictEqual(lhr.lighthouseVersion, '12.0.0');
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assert.match(lhr.finalUrl, /^https:\/\/localhost:[0-9]+\/test\/e2e\/resources\/lighthouse\/hello.html/);
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assert.strictEqual(lhr.configSettings.throttlingMethod, 'simulate');

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