BasicHandleErrorAttribute to consider CustomErrors On/Off/RemoteOnly and other properties

[jjvanzon]

2018-06-04

The BasicHandleErrorAttribute seems to connect certain exception types to HTTP status codes, to which URLs are associated using the config section customErrors.

• But customErrors' properties like Mode and DefaultRedirect do not seem to be considered yet there.
• Detail: The login redirect might always redirect even when CustomErrors is off.
• Other redirects, including NotAuthorized (?), might be made dependent on CustomErrors mode.