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Update "WebView2 browser flags"#3711

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mikehoffms wants to merge 3 commits intomainfrom
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Update "WebView2 browser flags"#3711
mikehoffms wants to merge 3 commits intomainfrom
user/mikehoffms/wv2-flags

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@mikehoffms mikehoffms commented Feb 2, 2026

@mikehoffms mikehoffms added in-progress cat: webview2 WebView-related content. labels Feb 2, 2026
@mikehoffms mikehoffms changed the title date Update "WebView2 browser flags" Feb 2, 2026
@mikehoffms mikehoffms requested a review from Ju-MsGit February 2, 2026 20:17
@mikehoffms mikehoffms marked this pull request as ready for review February 6, 2026 22:28
@mikehoffms mikehoffms requested a review from Ju-MsGit February 6, 2026 22:29
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Learn Build status updates of commit 81e85fb:

✅ Validation status: passed

File Status Preview URL Details
microsoft-edge/webview2/concepts/webview-features-flags.md ✅Succeeded View

For more details, please refer to the build report.

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PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

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PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

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Learn Build status updates of commit ba62c23:

✅ Validation status: passed

File Status Preview URL Details
microsoft-edge/webview2/concepts/webview-features-flags.md ✅Succeeded View

For more details, please refer to the build report.

| `msSingleSignOnOSForPrimaryAccountIsShared` | Allows implicit sign-in to Microsoft webpages using any account, by using the information from the primary OS account. |
| `msSmartScreenProtection` | Makes SmartScreen protection available. |
| `msUseSpellCheckCorrectionsCard` | Causes a corrections card UI to be shown when the user clicks a misspelled word. |
| `msWebViewAllowLocalNetworkAccessChecks` | Enables Local Network Access security checks that restrict web content from public origins from accessing local and loopback network resources unless explicitly permitted. Disabled by default; must be enabled by the app to configure Local Network Access behavior in WebView2. This feature flag will be applicable until the APIs are fully onboarded and their adoption reaches a stable state, after which this flag will be deprecated. |
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Please add 'Note: This feature flag will be...' on a new line to ensure feature flag being temporary is not overlooked, as users may not read the entire line.
Refer to my original comment.

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