Contextual properties for ValidationException

[PawelJ-PL]

Hi,

I think it would be a significant improvement if ValidationException errors (or at least some of them) included additional attributes containing contextual information. For instance, in the case of a BadOriginException, this attribute could be clientOrigin. Currently, to obtain this information, we need to parse the error message (The collectedClientData " + clientOrigin + " origin doesn't match any of the preconfigured server origin.). With such an approach, there's a risk that the message might change in the future, catching us off guard.

[ynojima]

Thank you for pointing this out.
Started Working on it in #811

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[PawelJ-PL]

Bumping, just so the issue doesn't get closed.