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chore: allow local-network-access permission in chromium #37871

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yury-s merged 2 commits into microsoft:main from yury-s:cr-localNetworkAccess
Oct 16, 2025

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@yury-s yury-s commented Oct 15, 2025
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Feature status: https://chromestatus.com/feature/5152728072060928 Looks like it got enabled between 1.56.0-alpha-2025年09月12日 and 1.56.0-alpha-2025年09月11日 which correspond to Chromium 141.0.7390.16 and 141.0.7390.7.

Blink thread: https://groups.google.com/a/chromium.org/g/blink-dev/c/cwu_RUmBpzY?utm_source=chatgpt.com&pli=1

Fixes #37861

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yury-s commented Oct 15, 2025

Not sure if we want to support this, given that "permission prompt for Local Network Access" is still an [opt-in experiment]( permission prompt for Local Network Access) in Chrome.

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@dgozman dgozman left a comment

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I think this one is good. It looks like LNA is going to be enabled by default in 142 (https://chromestatus.com/feature/5152728072060928), so unblocking this usecase is nice. I am afraid that we'll have to disable it if too many customers are affected in the next release.

Can we add a test, or is that too hard given the IP shenanigans?

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jgoz commented Oct 15, 2025
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Thank you for the quick turnaround on this!

I am afraid that we'll have to disable it if too many customers are affected in the next release.

I commented about this here: #37861 (comment)

My gut feeling is that most people won't be affected by this because they will likely fall into "all private" or "all public" buckets of access patterns. We were affected because our desire for consistent infrastructure between dev/staging/prod meant putting the root URL behind CF (technically making it public) while other services were kept private.

But it will be nice to have an escape hatch for those of us in the unconventional "public -> private" bucket.

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@yury-s yury-s force-pushed the cr-localNetworkAccess branch from c89ece1 to f02fa79 Compare October 16, 2025 23:25
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Test results for "MCP"

2570 passed, 108 skipped


Merge workflow run.

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Test results for "tests 1"

2 failed
❌ [playwright-test] › runner.spec.ts:118 › should ignore subprocess creation error because of SIGINT @macos-latest-node18-1
❌ [playwright-test] › ui-mode-test-network-tab.spec.ts:204 › should not preserve selection across test runs @macos-latest-node18-1

2 flaky ⚠️ [firefox-library] › library/inspector/cli-codegen-1.spec.ts:1079 › cli codegen › should not throw csp directive violation errors `@firefox-ubuntu-22.04-node18`
⚠️ [playwright-test] › ui-mode-test-attachments.spec.ts:21 › should contain text attachment `@windows-latest-node18-1`

47095 passed, 815 skipped


Merge workflow run.

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@pavelfeldman pavelfeldman pavelfeldman approved these changes

@dgozman dgozman dgozman approved these changes

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Accept local-network-access permission

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