Embedded Tableau views unexpectedly fail to load after updating Google Chrome to version 142. Embedded views may unexpectedly display the following error:
The connection is blocked because it was initiated by a public page to connect to devices or servers on your private network. Reload this page to allow the connection.
Environment
Cause
New network security restrictions were introduced in Google Chrome version 142. These restrictions, specifically the 'Local Network Access Checks,' block requests from public pages to private networks, which impacts the rendering of embedded Tableau dashboards.
Resolution Options
1. Update the Chrome flag settings to allow local network access. Refer to the Okta Knowledge Base article for detailed steps: Okta: Configure Chrome to Suppress the Local Network Access Prompt for Okta FastPass
2. Engage your security or network team to verify local network access configurations and ensure compliance with Chrome's new requirements. Refer to the Chrome developer documentation for more details: Google Chrome: Local network access restrictions
3. Use an alternative browser such as Microsoft Edge or Firefox to access the embedded Tableau dashboards.
4. Downgrade Google Chrome to a version prior to 142 to bypass the 'Local Network Access Checks' restrictions.
OR
To add the "allow" attribute to the <iframe> , customer should customize the line with the setAttribute according to thier needs. something like below:
<tableau-viz src="..."></tableau-viz>
<script>
const viz = document.querySelector('tableau-viz');
const iframe = viz.shadowRoot.querySelector('iframe');
iframe.setAttribute('allow', 'local-network-access *');
</script>
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