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May 12, 2025
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[CF1] custom block dialogs rbi #22208

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[CF1] custom block dialogs rbi
deadlypants1973 May 5, 2025
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deadlypants1973 May 12, 2025
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17 changes: 16 additions & 1 deletion src/content/docs/cloudflare-one/policies/browser-isolation/isolation-policies.mdx
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Expand Up @@ -5,7 +5,7 @@ sidebar:
order: 2
---

import { Render, Tabs, TabItem } from "~/components";
import { Render, Badge, Tabs, TabItem } from "~/components";

With Browser Isolation, you can define policies to dynamically isolate websites based on identity, security threats, or content.

Expand Down Expand Up @@ -117,6 +117,21 @@ Mouse input remains available to allow users to browse a website by following hy
- _Allow_: (Default) Users can print isolated web pages to their local machine.
- _Do not allow_: Prohibits users from printing isolated web pages to their local machine.

## Custom block dialog <Badge text="Beta" variant="note" />

With custom block dialogs, you can host a custom block page when users are blocked from taking specific actions, like [copying](/cloudflare-one/policies/browser-isolation/isolation-policies/#copy-from-remote-to-client), [pasting](/cloudflare-one/policies/browser-isolation/isolation-policies/#paste-from-client-to-remote), [downloading](/cloudflare-one/policies/browser-isolation/isolation-policies/#file-downloads), [uploading](/cloudflare-one/policies/browser-isolation/isolation-policies/#file-uploads), [performing keyboard inputs](/cloudflare-one/policies/browser-isolation/isolation-policies/#keyboard), or [printing](/cloudflare-one/policies/browser-isolation/isolation-policies/#printing), within an isolated browser session.

Administrators can configure custom block dialogs to explain the reason for the block, and guide the users on how to resolve their issue using the provided query parameters:

- `action`: copy, paste, download, upload, perform keyboard inputs, and print
- `cf_colo`: for example, `e.g sea01`
- `client_url`: for example, `https://example.com`
- `policy_id`: 32-character id
- `rbi_debug_id`: 32-character id
- `user_id`: 32-character id

Custom block dialogs are still in beta. Contact your account team to start using custom block dialogs.

## Common policies

### Isolate all security threats
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