On Wed, 9 Mar 2016, Dave S wrote:

> I noticed that using --data-binary the curl command is also very slow, and
> the --verbose reveals
>
> "Content-Type: application/x-www-form-urlencoded"
>
> Shouldn't this be something like
>
> "Content-Type: application/binary" ?

Maybe. We use the application/x-www-form-urlencoded type since forever since
that's the content-type browsers use for normal form posts. You can easily
change that if you need to. However in my experience, most server setups don't
really care what the Content-Type is set to.

-- 
  / daniel.haxx.se
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