Recent Safari update breaks some SPs ?

[Cantor, Scott]

> And in the query string is &RelayState= ...  In the requests that fail, the URL
> begins with https://... while in requests that work properly the URL is
> encoded with https%3A%2F%2F...
> 
> So it looks like Safari is decoding part of the query string that it should be
> leaving alone.

That seems pretty eggregious to be a Safari bug. Are you sure the issue isn't with the source system producing the redirect? That particular source system isn't known for robustness.

-- Scott