>>Jos,
>>
>>Set the Content-Type of your response to [...]
>
>Antonio, thank you, this solved it. I had no "Content-Type" header in the return packet at all. I guess Windows and Android simply accepted my code saying it was ANSI but iOS requires an explicit content-type header.

Your Windows and Android clients may have better heuristics...

>Thanks again. Love Portugal BTW. Looks like Nazare going to get the big waves soon.

It's their season right now, isn't it? With those waves, that's surely a sport for wonderful and crazy people...