[Bug] Partner Center / Edge Add-ons Developer Portal: 403 Unauthorized error when submitting Privacy Policy during extension publishing

[musicd]

Summary

I am attempting to register as a Microsoft Edge Extension Partner/Developer and submit my first extension ZIP package. While uploading the ZIP file and filling in the promotion details work seamlessly, the portal consistently fails at the Privacy Policy section.

Submitting or saving the Privacy Policy triggers a generic error asking to refresh the page ("This page has encountered a problem. Please refresh and try again"). Upon refreshing, all previously entered content is wiped.

Checking Network DevTools reveals an HTTP 403 Unauthorized response from the API endpoint during the Privacy Policy save/submit request, putting the onboarding process into an infinite loop. This issue has persisted for 5 days.

Steps to Reproduce

1. Log into the Microsoft Edge Program / Partner Center Developer Portal.
2. Navigate to the extension submission workflow and complete basic package upload (ZIP) and store listing metadata.
3. Reach the Privacy Policy field/section.
4. Fill in the required Privacy Policy URL/text and click Save/Submit.
5. Observe the error prompt: "This page has encountered a problem. Please refresh and try again".

Expected Behavior

The Privacy Policy should save successfully, allowing the submission to proceed to the next stage or final review.

Actual Behavior

The portal fails to save the Privacy Policy. Inspecting the network requests shows an HTTP 403 Unauthorized error on the underlying API call. The UI asks to refresh, which discards all form input.

Environment & Troubleshooting Attempted

• Browser: Microsoft Edge / Google Chrome (Latest versions)
• OS: macOS
• Troubleshooting Steps Already Tried:
  • Cleared browser cache, storage, and cookies.
  • Attempted in Incognito / Private Browsing mode (Cmd + Shift + N).
  • Tried multiple network environments / VPN nodes (to rule out IP block/geo-routing issues).
  • Waited 5 days after account creation (in case it was a delayed account provisioning issue).
  • Re-authenticated (logged out and logged back in).

Additional Context / Logs

• API Response Code: 403 Unauthorized
• No community solutions or similar cases reported online for this specific step in the Edge extension onboarding flow.

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Note: This seems to be a backend session/token authorization issue specifically bound to the Privacy Policy API endpoint for new partner accounts.