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Modern browser security blocking iframe embeds to intranet URLs

Some browsers block embedded intranet or internal URLs inside public web apps. This article explains how to identify the issue and enable local network access, or when to contact your IT team.

Mohamed Berrada avatar
Written by Mohamed Berrada
Updated over a week ago

Overview

Some customers may experience issues when embedding internal or intranet web pages inside Fabriq.
Instead of the embedded content, the browser may display a security warning or a blank area.

This behavior is caused by recent security changes in modern browsers, not by a Fabriq configuration change.

How to recognize the issue

You may be affected if you see one of the following:

  • A browser popup asking whether Fabriq is allowed to connect to devices or servers on your local network

  • An error message stating that the connection is blocked because it was initiated by a public page

  • Embedded intranet content that previously worked and suddenly no longer loads

  • Different behavior depending on the user, browser, or network

Why this happens

Recent versions of Google Chrome and Microsoft Edge enforce a security mechanism called Private / Local Network Access.

Browsers now block, by default, public web applications (such as SaaS tools) from embedding or loading internal or intranet URLs.

This change:

  • is enforced by the browser,

  • applies automatically after browser updates,

  • previously allowed this type of embedding.

Affected browser versions

This behavior has been observed starting from:

  • Microsoft Edge version 143.0.3650.66

  • Google Chrome version 142

Future browser versions are expected to enforce this more broadly.

Resolution steps

Step 1: Check if a permission was previously denied

After a recent browser update, Chrome or Edge may have displayed a prompt asking whether Fabriq can access your local network.

If Block was selected, embedded intranet content will not load.

If you are unsure, continue to Step 2.

Step 2: Enable local network access for Fabriq

  1. Open the Fabriq page where the embedded content appears

  2. Click the lock icon (🔒) in the browser address bar

  3. Open Site settings

  4. Locate Local network access

  5. Set it to Allow

  6. Reload the page

If the embedded content loads correctly after reloading, the issue is resolved.

Step 3: If the setting is unavailable or greyed out

If Local network access cannot be modified and appears disabled, your browser is likely managed by corporate IT policies.

In this case:

  • the permission cannot be changed by the user,

  • access is controlled centrally by your organization.

Please contact your IT or security team and share this article with them so they can review the applicable browser policies.

Important notes

  • This is not a Fabriq bug

  • This is not an iframe implementation issue

  • No recent change in Fabriq is required to trigger this behavior

  • The impact may vary depending on browser version, enterprise policies, and network or VPN usage

Need help?

If the issue persists after following the steps above, please contact our support and include:

  • your browser (Chrome or Edge),

  • browser version,

  • whether your browser is managed by corporate IT,

  • the intranet URL you are embedding.

We’ll help you confirm the next steps.

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