Add support for passing visitor claims to integration webframes

[spastorelli]

Demo

Screen.Recording.2026-06-10.at.00.39.17.mov

using demo integration here: GitbookIO/integrations#1195

[linear-code]

RND-10382

[changeset-bot]

⚠️ No Changeset found

Latest commit: 0a26bf1

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[github-actions]

Summary of the deployments:

Version	URL	Status
Vercel	https://gitbook-v2-f6bj8l4zg-gitbook.vercel.app	✅
Cloudflare	https://7622670b-gitbook-open-v2-preview.gitbook.workers.dev	✅

Test content

Site	2v	2c
GitBook	https://gitbook-v2-f6bj8l4zg-gitbook.vercel.app/url/gitbook.com/docs	https://7622670b-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs
E2E	https://gitbook-v2-f6bj8l4zg-gitbook.vercel.app/url/gitbook.gitbook.io/test-gitbook-open	https://7622670b-gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.gitbook.io/test-gitbook-open

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Build	Status	Details	Updated (UTC)
customers-v2-cloudflare (Inspect)	✅ No changes detected	-	Jun 10, 2026, 9:22 PM
customers-v2-vercel (Inspect)	✅ No changes detected	-	Jun 10, 2026, 9:20 PM
v2-cloudflare (Inspect)	👍 Changes approved	4 changed	Jun 10, 2026, 9:27 PM
v2-vercel (Inspect)	👍 Changes approved	6 changed	Jun 10, 2026, 9:25 PM

[conico974]

LGTM, but we'll need to update the docs for that