curl -s isn't as useful as I thought

My default aliases includes an alias that sets curl=curl -s to keep curl requests quiet. More fool me.

I was trying to send a buffer using node that contained some null values (0x00) and actually zero visible characters and testing on the command line (as I do) using curl would always fail with:

* Failed writing body (0 != 141)
* Closing connection 0

Without (my default) -s I would have seen this:

Warning: Binary output can mess up your terminal. Use "--output -" to tell
Warning: curl to output it to your terminal anyway, or consider "--output
Warning: <FILE>" to save to a file.

But -s hides both progress and errors. So now I use curl=curl -s -S to only hide progress and to keep errors.