Mailto not working on iOS inside

I have an app which opens a web page using to an online form, there is a Mailto link and this is not working on iOS, but it works on Android.

I’ve doulbe check with webinspect and the link is formatted correctly <allow-intent href="mailto:*" /> is set in the config.

My hunch is that this has something to do with access permissions. Can you check if there are messages on the remote Safari console?

I’ve taken a look, and nothing is coming up in the safari console -

This is in the config:

    <allow-intent href="tel:*" />
    <allow-intent href="sms:*" />
    <allow-intent href="mailto:*" />

A bump to see if anyone has any other possible solutions, I’ve also tried:

	<access launch-external="yes" origin="tel:*" />
	<access launch-external="yes" origin="mailto:*" />