Computer Configuration > Administrative Templates > Google Chrome > Local Network Access settings
Both
HKLM\Software\Policies\Google\Chrome
When this policy is set to Enabled, any time when a warning is supposed to be displayed in Chrome DevTools due to Local Network Access checks failing, the main request will be blocked instead. When this policy is set to Disabled or unset, Local Network Access requests will use the default handling of these requests. See https://wicg.github.io/local-network-access/ for Local Network Access restrictions.