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[web] Updates to the README#176292

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Mar 10, 2026
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[web] Updates to the README#176292
auto-submit[bot] merged 7 commits into
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mdebbar-patch-6

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@mdebbar

@mdebbar mdebbar commented Sep 30, 2025

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The main addition here is the instructions for using a locally built dart sdk.

Along the way, I also did some other minor updates to this file.

@github-actions github-actions Bot added engine flutter/engine related. See also e: labels. platform-web Web applications specifically labels Sep 30, 2025
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Code Review

This pull request updates the README.md for the web UI engine. The main changes include adding instructions for using a locally built Dart SDK, simplifying the instructions for building CanvasKit and Skwasm by linking to a centralized document, and other minor text and formatting updates. My review focuses on ensuring the documentation is clear and accurate. I've pointed out a potential inconsistency in the list of supported renderers and suggested an improvement to make an example command more concrete and easier to understand.

Comment thread engine/src/flutter/lib/web_ui/README.md
Comment thread engine/src/flutter/lib/web_ui/README.md Outdated
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flutter-dashboard Bot commented Nov 5, 2025

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This pull request executed golden file tests, but it has not been updated in a while (20+ days). Test results from Gold expire after as many days, so this pull request will need to be updated with a fresh commit in order to get results from Gold.

For more guidance, visit Writing a golden file test for package:flutter.

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing.

eyebrowsoffire
eyebrowsoffire reviewed Dec 3, 2025
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Comment thread engine/src/flutter/lib/web_ui/README.md
@mdebbar mdebbar requested a review from eyebrowsoffire January 7, 2026 17:00
@Piinks

Piinks commented Mar 9, 2026

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Greetings from stale PR triage! 👋
Is this change still on your radar?

eyebrowsoffire
eyebrowsoffire approved these changes Mar 9, 2026
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LGTM

@mdebbar mdebbar added the autosubmit Merge PR when tree becomes green via auto submit App label Mar 10, 2026
@auto-submit auto-submit Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Mar 10, 2026
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autosubmit label was removed for flutter/flutter/176292, because - The status or check suite Windows windows_host_engine_test has failed. Please fix the issues identified (or deflake) before re-applying this label.

@mdebbar mdebbar added the autosubmit Merge PR when tree becomes green via auto submit App label Mar 10, 2026
@auto-submit auto-submit Bot added this pull request to the merge queue Mar 10, 2026
Merged via the queue into master with commit 195ae7b Mar 10, 2026
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@auto-submit auto-submit Bot deleted the mdebbar-patch-6 branch March 10, 2026 18:33
@flutter-dashboard flutter-dashboard Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Mar 10, 2026
@engine-flutter-autoroll engine-flutter-autoroll mentioned this pull request Mar 10, 2026
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 10, 2026
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195ae7b3a [web] Updates to the README (flutter/flutter#176292)
b9bbc3c
auto-submit Bot pushed a commit to flutter/packages that referenced this pull request Mar 10, 2026
@engine-flutter-autoroll
Roll Flutter from 2ec61af30672 to 195ae7b3a122 (36 revisions) (#11222)
406a982 
Roll Flutter from 2ec61af30672 to 195ae7b3a122 (36 revisions)

flutter/flutter@2ec61af...195ae7b

2026-03-10 mdebbar@google.com [web] Updates to the README (flutter/flutter#176292)
2026-03-10 jason-simmons@users.noreply.github.com [Impeller] Do not log VK_ERROR_SURFACE_LOST_KHR errors returned by vkAcquireNextImageKHR (flutter/flutter#183338)
2026-03-10 jason-simmons@users.noreply.github.com DlDeferredImageGPUImpeller::ImageWrapper texture thread safety improvements (flutter/flutter#183429)
2026-03-10 34465683+rkishan516@users.noreply.github.com refactor: remove material imports from system_context_menu_test, table_test (flutter/flutter#183368)
2026-03-10 34465683+rkishan516@users.noreply.github.com refactor: remove material from baseline_test, slivers_test (flutter/flutter#183367)
2026-03-10 30870216+gaaclarke@users.noreply.github.com Migrated circle sdf to euclidean 2d derivative (flutter/flutter#183184)
2026-03-10 engine-flutter-autoroll@skia.org Roll Packages from c717018 to ee460d6 (2 revisions) (flutter/flutter#183451)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 68f24903b592 to 4b35832cc7ea (1 revision) (flutter/flutter#183449)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 8eda160375ea to 68f24903b592 (1 revision) (flutter/flutter#183444)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from e7b957806202 to 8eda160375ea (2 revisions) (flutter/flutter#183440)
2026-03-10 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from ox-II3wPpa818y78_... to 8C_qfgWgoNhkV0_Mn... (flutter/flutter#183437)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 887df915a95e to e7b957806202 (1 revision) (flutter/flutter#183434)
2026-03-10 brackenavaron@gmail.com Remove material from scrollable_test.dart (flutter/flutter#181429)
2026-03-09 737941+loic-sharma@users.noreply.github.com Update 'a: text input' globs (flutter/flutter#183405)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from 3aa442e0624a to 887df915a95e (7 revisions) (flutter/flutter#183423)
2026-03-09 47866232+chunhtai@users.noreply.github.com Adds geometry dirty nodes (flutter/flutter#180375)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 5b1aa4f8db14 to ebef6c849489 (1 revision) (flutter/flutter#183417)
2026-03-09 Veselblu@yandex.ru Add Alexander Dmitriev to AUTHORS (flutter/flutter#183357)
2026-03-09 katelovett@google.com Update org triage (flutter/flutter#183254)
2026-03-09 8847263+littleGnAl@users.noreply.github.com [Android] Avoid plugin auto-registration during FlutterFragmentActivity recreate timing window (flutter/flutter#182963)
2026-03-09 chingjun@google.com Standardize skia includes. (flutter/flutter#183404)
2026-03-09 116356835+AbdeMohlbi@users.noreply.github.com Add a note to `arcTo` docs about the 2PI drawing angle issue (flutter/flutter#183293)
2026-03-09 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#183411)
2026-03-09 bkonyi@google.com [ Tool ] Fix --print-dtd not working for web targets (flutter/flutter#183171)
2026-03-09 victorsanniay@gmail.com Add await or ignore lint to flutter_driver unawaited callsites (flutter/flutter#183334)
2026-03-09 30870216+gaaclarke@users.noreply.github.com Cleanup MockVulkan when the vulkan instance is destroyed (flutter/flutter#183324)
2026-03-09 52160996+FMorschel@users.noreply.github.com Updates tests commit (flutter/flutter#183301)
2026-03-09 22373191+Hari-07@users.noreply.github.com Implements `ClipRSuperellipse` on backdrop filter on platform view (flutter/flutter#182643)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from ea4fd0e1472a to 3aa442e0624a (1 revision) (flutter/flutter#183397)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 050b2f646425 to 5b1aa4f8db14 (1 revision) (flutter/flutter#183393)
2026-03-09 engine-flutter-autoroll@skia.org Roll Packages from fe3de64 to c717018 (10 revisions) (flutter/flutter#183396)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from a83dca75c531 to ea4fd0e1472a (1 revision) (flutter/flutter#183389)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from 254e44141861 to a83dca75c531 (7 revisions) (flutter/flutter#183388)
2026-03-09 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from giLoee6arX5CRHuRh... to ox-II3wPpa818y78_... (flutter/flutter#183386)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 1604910613c7 to 050b2f646425 (1 revision) (flutter/flutter#183383)
2026-03-08 engine-flutter-autoroll@skia.org Roll Skia from af994ae4d990 to 254e44141861 (2 revisions) (flutter/flutter#183377)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages
Please CC stuartmorgan@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
...
xxxOVALxxx pushed a commit to xxxOVALxxx/flutter that referenced this pull request Mar 10, 2026
@mdebbar @xxxOVALxxx
[web] Updates to the README (flutter#176292)
a92855e 
The main addition here is the instructions for using a locally built
dart sdk.

Along the way, I also did some other minor updates to this file.
okorohelijah pushed a commit to okorohelijah/packages that referenced this pull request Mar 26, 2026
@engine-flutter-autoroll @okorohelijah
Roll Flutter from 2ec61af30672 to 195ae7b3a122 (36 revisions) (flutte…
2dea51e 
…r#11222)

Roll Flutter from 2ec61af30672 to 195ae7b3a122 (36 revisions)

flutter/flutter@2ec61af...195ae7b

2026-03-10 mdebbar@google.com [web] Updates to the README (flutter/flutter#176292)
2026-03-10 jason-simmons@users.noreply.github.com [Impeller] Do not log VK_ERROR_SURFACE_LOST_KHR errors returned by vkAcquireNextImageKHR (flutter/flutter#183338)
2026-03-10 jason-simmons@users.noreply.github.com DlDeferredImageGPUImpeller::ImageWrapper texture thread safety improvements (flutter/flutter#183429)
2026-03-10 34465683+rkishan516@users.noreply.github.com refactor: remove material imports from system_context_menu_test, table_test (flutter/flutter#183368)
2026-03-10 34465683+rkishan516@users.noreply.github.com refactor: remove material from baseline_test, slivers_test (flutter/flutter#183367)
2026-03-10 30870216+gaaclarke@users.noreply.github.com Migrated circle sdf to euclidean 2d derivative (flutter/flutter#183184)
2026-03-10 engine-flutter-autoroll@skia.org Roll Packages from c717018 to ee460d6 (2 revisions) (flutter/flutter#183451)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 68f24903b592 to 4b35832cc7ea (1 revision) (flutter/flutter#183449)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 8eda160375ea to 68f24903b592 (1 revision) (flutter/flutter#183444)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from e7b957806202 to 8eda160375ea (2 revisions) (flutter/flutter#183440)
2026-03-10 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from ox-II3wPpa818y78_... to 8C_qfgWgoNhkV0_Mn... (flutter/flutter#183437)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 887df915a95e to e7b957806202 (1 revision) (flutter/flutter#183434)
2026-03-10 brackenavaron@gmail.com Remove material from scrollable_test.dart (flutter/flutter#181429)
2026-03-09 737941+loic-sharma@users.noreply.github.com Update 'a: text input' globs (flutter/flutter#183405)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from 3aa442e0624a to 887df915a95e (7 revisions) (flutter/flutter#183423)
2026-03-09 47866232+chunhtai@users.noreply.github.com Adds geometry dirty nodes (flutter/flutter#180375)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 5b1aa4f8db14 to ebef6c849489 (1 revision) (flutter/flutter#183417)
2026-03-09 Veselblu@yandex.ru Add Alexander Dmitriev to AUTHORS (flutter/flutter#183357)
2026-03-09 katelovett@google.com Update org triage (flutter/flutter#183254)
2026-03-09 8847263+littleGnAl@users.noreply.github.com [Android] Avoid plugin auto-registration during FlutterFragmentActivity recreate timing window (flutter/flutter#182963)
2026-03-09 chingjun@google.com Standardize skia includes. (flutter/flutter#183404)
2026-03-09 116356835+AbdeMohlbi@users.noreply.github.com Add a note to `arcTo` docs about the 2PI drawing angle issue (flutter/flutter#183293)
2026-03-09 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#183411)
2026-03-09 bkonyi@google.com [ Tool ] Fix --print-dtd not working for web targets (flutter/flutter#183171)
2026-03-09 victorsanniay@gmail.com Add await or ignore lint to flutter_driver unawaited callsites (flutter/flutter#183334)
2026-03-09 30870216+gaaclarke@users.noreply.github.com Cleanup MockVulkan when the vulkan instance is destroyed (flutter/flutter#183324)
2026-03-09 52160996+FMorschel@users.noreply.github.com Updates tests commit (flutter/flutter#183301)
2026-03-09 22373191+Hari-07@users.noreply.github.com Implements `ClipRSuperellipse` on backdrop filter on platform view (flutter/flutter#182643)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from ea4fd0e1472a to 3aa442e0624a (1 revision) (flutter/flutter#183397)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 050b2f646425 to 5b1aa4f8db14 (1 revision) (flutter/flutter#183393)
2026-03-09 engine-flutter-autoroll@skia.org Roll Packages from fe3de64 to c717018 (10 revisions) (flutter/flutter#183396)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from a83dca75c531 to ea4fd0e1472a (1 revision) (flutter/flutter#183389)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from 254e44141861 to a83dca75c531 (7 revisions) (flutter/flutter#183388)
2026-03-09 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from giLoee6arX5CRHuRh... to ox-II3wPpa818y78_... (flutter/flutter#183386)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 1604910613c7 to 050b2f646425 (1 revision) (flutter/flutter#183383)
2026-03-08 engine-flutter-autoroll@skia.org Roll Skia from af994ae4d990 to 254e44141861 (2 revisions) (flutter/flutter#183377)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages
Please CC stuartmorgan@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
...
mboetger pushed a commit to mboetger/flutter that referenced this pull request Mar 26, 2026
@mdebbar @mboetger
[web] Updates to the README (flutter#176292)
71396ba 
The main addition here is the instructions for using a locally built
dart sdk.

Along the way, I also did some other minor updates to this file.
ahmedsameha1 pushed a commit to ahmedsameha1/flutter that referenced this pull request Apr 14, 2026
@mdebbar @ahmedsameha1
[web] Updates to the README (flutter#176292)
e3440c1 
The main addition here is the instructions for using a locally built
dart sdk.

Along the way, I also did some other minor updates to this file.
creatorpiyush pushed a commit to creatorpiyush/packages that referenced this pull request Jun 10, 2026
@engine-flutter-autoroll
Roll Flutter from 2ec61af30672 to 195ae7b3a122 (36 revisions) (flutte…
270ee30 
…r#11222)

Roll Flutter from 2ec61af30672 to 195ae7b3a122 (36 revisions)

flutter/flutter@2ec61af...195ae7b

2026-03-10 mdebbar@google.com [web] Updates to the README (flutter/flutter#176292)
2026-03-10 jason-simmons@users.noreply.github.com [Impeller] Do not log VK_ERROR_SURFACE_LOST_KHR errors returned by vkAcquireNextImageKHR (flutter/flutter#183338)
2026-03-10 jason-simmons@users.noreply.github.com DlDeferredImageGPUImpeller::ImageWrapper texture thread safety improvements (flutter/flutter#183429)
2026-03-10 34465683+rkishan516@users.noreply.github.com refactor: remove material imports from system_context_menu_test, table_test (flutter/flutter#183368)
2026-03-10 34465683+rkishan516@users.noreply.github.com refactor: remove material from baseline_test, slivers_test (flutter/flutter#183367)
2026-03-10 30870216+gaaclarke@users.noreply.github.com Migrated circle sdf to euclidean 2d derivative (flutter/flutter#183184)
2026-03-10 engine-flutter-autoroll@skia.org Roll Packages from c717018 to ee460d6 (2 revisions) (flutter/flutter#183451)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 68f24903b592 to 4b35832cc7ea (1 revision) (flutter/flutter#183449)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 8eda160375ea to 68f24903b592 (1 revision) (flutter/flutter#183444)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from e7b957806202 to 8eda160375ea (2 revisions) (flutter/flutter#183440)
2026-03-10 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from ox-II3wPpa818y78_... to 8C_qfgWgoNhkV0_Mn... (flutter/flutter#183437)
2026-03-10 engine-flutter-autoroll@skia.org Roll Skia from 887df915a95e to e7b957806202 (1 revision) (flutter/flutter#183434)
2026-03-10 brackenavaron@gmail.com Remove material from scrollable_test.dart (flutter/flutter#181429)
2026-03-09 737941+loic-sharma@users.noreply.github.com Update 'a: text input' globs (flutter/flutter#183405)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from 3aa442e0624a to 887df915a95e (7 revisions) (flutter/flutter#183423)
2026-03-09 47866232+chunhtai@users.noreply.github.com Adds geometry dirty nodes (flutter/flutter#180375)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 5b1aa4f8db14 to ebef6c849489 (1 revision) (flutter/flutter#183417)
2026-03-09 Veselblu@yandex.ru Add Alexander Dmitriev to AUTHORS (flutter/flutter#183357)
2026-03-09 katelovett@google.com Update org triage (flutter/flutter#183254)
2026-03-09 8847263+littleGnAl@users.noreply.github.com [Android] Avoid plugin auto-registration during FlutterFragmentActivity recreate timing window (flutter/flutter#182963)
2026-03-09 chingjun@google.com Standardize skia includes. (flutter/flutter#183404)
2026-03-09 116356835+AbdeMohlbi@users.noreply.github.com Add a note to `arcTo` docs about the 2PI drawing angle issue (flutter/flutter#183293)
2026-03-09 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#183411)
2026-03-09 bkonyi@google.com [ Tool ] Fix --print-dtd not working for web targets (flutter/flutter#183171)
2026-03-09 victorsanniay@gmail.com Add await or ignore lint to flutter_driver unawaited callsites (flutter/flutter#183334)
2026-03-09 30870216+gaaclarke@users.noreply.github.com Cleanup MockVulkan when the vulkan instance is destroyed (flutter/flutter#183324)
2026-03-09 52160996+FMorschel@users.noreply.github.com Updates tests commit (flutter/flutter#183301)
2026-03-09 22373191+Hari-07@users.noreply.github.com Implements `ClipRSuperellipse` on backdrop filter on platform view (flutter/flutter#182643)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from ea4fd0e1472a to 3aa442e0624a (1 revision) (flutter/flutter#183397)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 050b2f646425 to 5b1aa4f8db14 (1 revision) (flutter/flutter#183393)
2026-03-09 engine-flutter-autoroll@skia.org Roll Packages from fe3de64 to c717018 (10 revisions) (flutter/flutter#183396)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from a83dca75c531 to ea4fd0e1472a (1 revision) (flutter/flutter#183389)
2026-03-09 engine-flutter-autoroll@skia.org Roll Skia from 254e44141861 to a83dca75c531 (7 revisions) (flutter/flutter#183388)
2026-03-09 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from giLoee6arX5CRHuRh... to ox-II3wPpa818y78_... (flutter/flutter#183386)
2026-03-09 engine-flutter-autoroll@skia.org Roll Dart SDK from 1604910613c7 to 050b2f646425 (1 revision) (flutter/flutter#183383)
2026-03-08 engine-flutter-autoroll@skia.org Roll Skia from af994ae4d990 to 254e44141861 (2 revisions) (flutter/flutter#183377)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages
Please CC stuartmorgan@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
...
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@eyebrowsoffire eyebrowsoffire eyebrowsoffire approved these changes
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@mdebbar @Piinks @eyebrowsoffire