Regression in Edge 147 causes Intune Admin Center blades to fail (PolicySummaryBlade breaks) #428
Description
Microsoft Edge 147.0.3912.10 (Dev/Beta) causes Microsoft Intune Admin Center blades to fail to load—particularly PolicySummaryBlade and other grid-based blades. The same exact workflow functions correctly in Edge Stable 146.0.3856.59 and Chrome.
This appears to be a DOM rendering or MsPortalFx regression in Edge 147.
Repro Steps:
Open Edge 147.0.3912.10
Go to https://intune.microsoft.com
Open: Devices → Select a device → Policies → View policy summary
Blade fails to load and shows “Error displaying your content”
Actual Behavior:
Error dialog appears and portal traces show:
Failed to load control module 'MsPortalImpl.Controls/Controls/Lists/Grid2/Grid2.DataGrid.ctl'
TypeError: Cannot set properties of undefined (setting 'innerHTML')
Expected Behavior:
Blade loads normally (as it does in Edge 146 and Chrome).
Troubleshooting Performed:
Repro in InPrivate
Repro in clean profile
Repro with all extensions disabled
Clearing browser data doesn’t help
Portal works correctly in Edge 146 + Chrome → confirms regression in Edge 147
Multiple dynamic script bundles fail during load
Impact:
Breaks Intune portal administration for users on Edge 147. Forces switching browsers for daily admin work.
Please investigate this regression.