fix(webkit): scroll mobile page with background-attachment: fixed

[yury-s]

Fixes #31551
Fixes #23573

[github-actions]

Test results for "tests others"

20558 passed, 495 skipped
✔️✔️✔️

Merge workflow run.

[github-actions]

Test results for "tests 1"

4 flaky

⚠️ [installation tests] › playwright-electron-should-work.spec.ts:21:5 › electron should work @package-installations-macos-latest
⚠️ [chromium-page] › page/page-event-request.spec.ts:138:3 › should report navigation requests and responses handled by service worker with routing @ubuntu-20.04-chromium-tip-of-tree
⚠️ [playwright-test] › ui-mode-test-update.spec.ts:202:5 › should update test locations @ubuntu-latest-node20-1
⚠️ [playwright-test] › ui-mode-test-watch.spec.ts:145:5 › should watch all @windows-latest-node18-1

35874 passed, 619 skipped
✔️✔️✔️

Merge workflow run.

[github-actions]

Test results for "tests 2"

2 fatal errors, not part of any test
16 failed
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:707:7 › cli codegen › should select with multiple attribute @webkit-headed-macos-14-xlarge
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:740:7 › cli codegen › should unselect with multiple attribute @webkit-headed-macos-14-xlarge
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:707:7 › cli codegen › should select with multiple attribute @webkit-macos-13-large
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:740:7 › cli codegen › should unselect with multiple attribute @webkit-macos-13-large
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:707:7 › cli codegen › should select with multiple attribute @webkit-macos-13-xlarge
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:740:7 › cli codegen › should unselect with multiple attribute @webkit-macos-13-xlarge
❌ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames fit @webkit-macos-13-xlarge
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:707:7 › cli codegen › should select with multiple attribute @webkit-macos-14-large
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:740:7 › cli codegen › should unselect with multiple attribute @webkit-macos-14-large
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:707:7 › cli codegen › should select with multiple attribute @webkit-macos-14-xlarge
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:740:7 › cli codegen › should unselect with multiple attribute @webkit-macos-14-xlarge
❌ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames scale @webkit-macos-14-xlarge
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:707:7 › cli codegen › should select with multiple attribute @webkit-macos-15-large
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:740:7 › cli codegen › should unselect with multiple attribute @webkit-macos-15-large
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:707:7 › cli codegen › should select with multiple attribute @webkit-macos-15-xlarge
❌ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:740:7 › cli codegen › should unselect with multiple attribute @webkit-macos-15-xlarge

44 flaky

⚠️ [chromium-library] › library/inspector/cli-codegen-2.spec.ts:525:7 › cli codegen › should --test-id-attribute @chromium-headed-windows-latest
⚠️ [chromium-library] › library/selector-generator.spec.ts:587:5 › selector generator › should generate multiple: noId noText @chromium-headed-windows-latest
⚠️ [chromium-page] › page/page-drag.spec.ts:73:5 › Drag and drop › should work inside iframe @chromium-headed-windows-latest
⚠️ [chromium-library] › library/inspector/cli-codegen-3.spec.ts:171:7 › cli codegen › should generate frame locators (4) @chromium-macos-14-large
⚠️ [chromium-library] › library/video.spec.ts:381:5 › screencast › should capture navigation @chromium-macos-14-xlarge
⚠️ [chromium-library] › library/video.spec.ts:381:5 › screencast › should capture navigation @chromium-tip-of-tree-macos-13--headed
⚠️ [chromium-library] › library/inspector/cli-codegen-2.spec.ts:405:7 › cli codegen › should update hover model on action @chromium-tip-of-tree-ubuntu-20.04--headed
⚠️ [chromium-library] › library/inspector/cli-codegen-1.spec.ts:24:7 › cli codegen › should click @chromium-tip-of-tree-windows-latest--headed
⚠️ [chromium-page] › page/page-drag.spec.ts:290:5 › Drag and drop › should work with the helper method @chromium-tip-of-tree-windows-latest--headed
⚠️ [firefox-library] › library/signals.spec.ts:25:5 › should close the browser when the node process closes @firefox-beta-windows-latest
⚠️ [firefox-library] › library/capabilities.spec.ts:254:3 › requestFullscreen @firefox-headed-macos-14-xlarge
⚠️ [firefox-library] › library/video.spec.ts:381:5 › screencast › should capture navigation @firefox-headed-macos-14-xlarge
⚠️ [firefox-library] › library/browsercontext-proxy.spec.ts:167:3 › should use proxy for second page @firefox-headed-windows-latest
⚠️ [firefox-library] › library/browsercontext-proxy.spec.ts:294:3 › should exclude patterns @firefox-headed-windows-latest
⚠️ [firefox-library] › library/client-certificates.spec.ts:442:3 › browser › should pass with matching certificates in pfx format @firefox-headed-windows-latest
⚠️ [firefox-library] › library/download.spec.ts:80:5 › download event › should work with Cross-Origin-Opener-Policy @firefox-headed-windows-latest
⚠️ [firefox-library] › library/inspector/cli-codegen-3.spec.ts:556:7 › cli codegen › should generate getByLabel without regex @firefox-headed-windows-latest
⚠️ [firefox-library] › library/trace-viewer.spec.ts:148:1 › should render network bars @firefox-headed-windows-latest
⚠️ [chromium-page] › page/page-set-input-files.spec.ts:147:3 › should upload large file @msedge-dev-windows-latest
⚠️ [firefox-page] › page/page-wait-for-function.spec.ts:43:3 › should poll on interval @tracing-firefox
⚠️ [webkit-library] › library/video.spec.ts:165:5 › screencast › should work with old options @tracing-webkit
⚠️ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:611:7 › cli codegen › should select @webkit-headed-macos-14-xlarge
⚠️ [webkit-page] › page/workers.spec.ts:106:3 › should clear upon navigation @webkit-headed-ubuntu-20.04
⚠️ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:484:7 › cli codegen › should emit single keyup on ArrowDown @webkit-headed-ubuntu-22.04
⚠️ [webkit-library] › library/inspector/cli-codegen-2.spec.ts:249:7 › cli codegen › should handle dialogs @webkit-headed-ubuntu-22.04
⚠️ [webkit-library] › library/popup.spec.ts:115:3 › should inherit viewport size from browser context @webkit-headed-ubuntu-22.04
⚠️ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:814:7 › cli codegen › should attribute navigation to click @webkit-headed-ubuntu-24.04
⚠️ [webkit-library] › library/browsercontext-reuse.spec.ts:206:1 › should reset mouse position @webkit-headed-windows-latest
⚠️ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:56:7 › cli codegen › should double click @webkit-headed-windows-latest
⚠️ [webkit-library] › library/inspector/cli-codegen-1.spec.ts:740:7 › cli codegen › should unselect with multiple attribute @webkit-headed-windows-latest
⚠️ [webkit-library] › library/inspector/cli-codegen-2.spec.ts:494:7 › cli codegen › should fill tricky characters @webkit-headed-windows-latest
⚠️ [webkit-library] › library/inspector/cli-codegen-3.spec.ts:437:7 › cli codegen › should generate getByTestId @webkit-headed-windows-latest
⚠️ [webkit-library] › library/inspector/cli-codegen-3.spec.ts:585:7 › cli codegen › should consume pointer events @webkit-headed-windows-latest
⚠️ [webkit-page] › page/page-request-fallback.spec.ts:239:5 › post data › should amend binary post data @webkit-macos-13-large
⚠️ [webkit-page] › page/selectors-react.spec.ts:40:7 › react17 › should work with multi-root elements (fragments) @webkit-macos-13-large
⚠️ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames crop @webkit-macos-13-xlarge
⚠️ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames scale @webkit-macos-13-xlarge
⚠️ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames fit @webkit-macos-14-xlarge
⚠️ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames crop @webkit-macos-14-xlarge
⚠️ [webkit-page] › page/page-request-continue.spec.ts:241:5 › post data › should amend longer post data @webkit-macos-14-xlarge
⚠️ [webkit-library] › library/browsertype-connect.spec.ts:606:5 › run-server › should save har @webkit-macos-15-xlarge
⚠️ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames fit @webkit-macos-15-xlarge
⚠️ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames crop @webkit-macos-15-xlarge
⚠️ [webkit-library] › library/tracing.spec.ts:410:14 › should produce screencast frames scale @webkit-macos-15-xlarge

242606 passed, 9572 skipped, 5 did not run
✔️✔️✔️

Merge workflow run.