Pass 401 errors with UNVERIFIED_IDENTITY back to the client, as this means we need to reauthenticate for critical elevation.
Pass 401 errors with UNVERIFIED_IDENTITY back to the client, as this means we need to reauthenticate for critical elevation.

blinkboxbooks/server-web-app.js,iQuarK/server-web-app.js,blinkboxbooks/server-web-app.js,iQuarK/server-web-app.js