Allow cross-origin HTTP Authentication prompts
Supported on: Microsoft Edge version 77, Windows 7 or later
Registry
HKLM
Software\Policies\Microsoft\Edge HKCU
Software\Policies\Microsoft\Edge Value name: AllowCrossOriginAuthPrompt
Enabled: AllowCrossOriginAuthPrompt = 1
Disabled: AllowCrossOriginAuthPrompt = 0
Description
Controls whether third-party images on a page can show an authentication prompt. Typically, this is disabled as a phishing defense. If you don't configure this policy, it's disabled and third-party images can't show an authentication prompt.