docs: add URLAllowlist navigation-restriction example to chrome policies

[dprevoznik]

Summary

Adds a "Restrict navigation to specific URLs" section to browsers/chrome-policies.mdx, directly below "Block DevTools and page source", showing the allowlist-only pattern:

{ "URLBlocklist": ["*"], "URLAllowlist": ["chatgpt.com", "en.wikipedia.org/wiki/Cat"] }

Same level of detail and structure as the DevTools section (intro paragraph + Python/TS CodeGroup).

Notes

• Entries match a whole domain or a specific path; more specific entries take precedence.
• The section notes the behavior I verified against a live Kernel browser: the policy gates top-level navigation (non-allowlisted URLs return ERR_BLOCKED_BY_ADMINISTRATOR) but does not block sub-resources or API calls a permitted page loads from other origins.
• Docs-only change; preview will render at the branch Mintlify URL.

🤖 Generated with Claude Code

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Note

Low Risk
Docs-only change with no runtime, API, or security logic modifications.

Overview
Adds a Restrict navigation to specific URLs common-use-case section to browsers/chrome-policies.mdx, placed after the DevTools blocklist example.

The section documents the block-all-then-allow pattern (URLBlocklist: ["*"] plus URLAllowlist for approved domains/paths), including how matching and precedence work and that only top-level navigation is gated (ERR_BLOCKED_BY_ADMINISTRATOR), not sub-resources or cross-origin APIs on allowed pages. Python and TypeScript browsers.create() snippets mirror the existing DevTools section format.

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Project	Status	Preview	Updated (UTC)
Kernel	🟢 Ready	View Preview	Aug 4, 2026, 4:40 PM

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Project	Deployment	Actions	Updated (UTC)
docs	Error		Aug 4, 2026 4:39pm

[cursor]

Risk assessment: Very Low

Verdict: Approve

Evidence (from diff only)

• 1 file changed:browsers/chrome-policies.mdx (+32 / −0)
• Adds a documentation section with Python and TypeScript examples for URLBlocklist / URLAllowlist Chrome policies
• No application code, config, CI, infrastructure, auth, or API surface changes
• No CODEOWNERS file present for this path; no prior approvals to re-evaluate

Why Very Low

This is a small, docs-only addition on a Mintlify documentation page. Blast radius is limited to published docs content; there is no production logic or shared-system impact.

Action: Approving per Very Low risk criteria.

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[cursor]

Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

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^{Reviewed by Cursor Bugbot for commit ccb1161. Configure here.}

[cursor]

Dense intro needs bullet list

Low Severity

The new “Restrict navigation” intro packs several separable points—block-all plus allowlist, domain vs path-style entries, precedence, top-level ERR_BLOCKED_BY_ADMINISTRATOR, and sub-resource exceptions—into one dense paragraph instead of a lead-in plus bullets per documentation style rules.

^{Triggered by learned rule: Use bullet lists when covering multiple distinct points in guides}

^{Reviewed by Cursor Bugbot for commit ccb1161. Configure here.}