Fix Power Apps SharePoint Form Refused to Connect in Edge and Chrome
Question details
Users are encountering a persistent connection error when attempting to load Power Apps forms integrated with SharePoint lists.
- Product
- Power Apps, SharePoint, Edge, Chrome
- Device & OS
- not provided
- Scenario
- Accessing Power Apps integrated forms within SharePoint after a recent Microsoft system update.
- Observed behavior
- The browser displays an 'apps.powerapps.com refused to connect' error. Clearing the browser cache and cookies only provides temporary relief before the error returns.
Ensure you have administrative privileges to modify browser privacy settings and access your organization's endpoint security software configurations.
Add Exceptions in Endpoint Security Software
Configure your endpoint security product (such as WithSecure Elements) to prevent it from blocking SharePoint or Power Apps content.
Endpoint security software and strict web content-control policies can sometimes misidentify cross-domain integrations as tracking or malicious behavior. Whitelisting the required Microsoft domains usually resolves this.
Log in to your endpoint security management dashboard (e.g., WithSecure Elements) using an administrator account.
Navigate to the web protection, content-control policies, or firewall exception settings.
Add exceptions to allow traffic and scripts from both the SharePoint and Power Apps domains.
Save your newly configured policies, wait for them to propagate to the endpoint, and refresh the browser to test the form.
Adjust Browser Cookie and Permission Settings
Modify Edge and Chrome privacy settings to allow the necessary authentication cookies and cross-site scripts to run.
Collect Diagnostic Data for Escalation
If adjusting settings does not fix the issue, gather relevant environment details to escalate the problem to IT support or Microsoft.
Experience a Lighter, More Reliable Office Suite
While troubleshooting complex Microsoft integrations like Power Apps and SharePoint, consider streamlining your standalone document workflow with WPS Office. It provides a lightweight, highly compatible alternative for handling all your standard office documents without the overhead of complex cloud dependencies.
- 1. Download WPS Office: Visit the official WPS website to download and install the free WPS Office suite.
- 2. Open Your Documents: Launch the application and easily open your existing Microsoft Office files without formatting loss.
- 3. Edit with Ease: Utilize the lightweight, tabbed interface to work on documents, spreadsheets, and presentations simultaneously.

Frequently Asked Questions
Why does clearing the browser cache only temporarily fix the Power Apps error?
Clearing the cache temporarily resets your browser state, but if the underlying endpoint security policy or browser tracking-prevention setting is still active, it will eventually re-block the necessary Power Apps cookies or cross-site data, causing the error to return.
Which domains need to be whitelisted for Power Apps in SharePoint?
To ensure smooth operation, you generally need to whitelist your specific SharePoint tenant URL (e.g., yourcompany.sharepoint.com) as well as apps.powerapps.com and related Microsoft authentication domains in your firewall or endpoint security software.
Can recent Microsoft Windows updates cause browser connection issues?
Yes, system updates can sometimes reset browser privacy settings to their defaults or introduce stricter tracking prevention protocols that inadvertently block legitimate cross-domain integrations like Power Apps embedded in SharePoint.
How do I stop Edge from blocking SharePoint embedded forms?
Open Edge Settings, navigate to 'Privacy, search, and services', and ensure your Tracking Prevention is set to 'Balanced'. Additionally, ensure you are not blocking third-party cookies for the SharePoint and Power Apps domains.




