On 1 Oct 2013, at 12:02, Dave <d...@looktowindward.com> wrote:

> Hi All,
> 
> This had reared it's ugly head again! I have been asked to add an event to 
> the Calendar WITHOUT asking the user for permission as the Standard Manner. I 
> basically said it couldn't be done based on feedback from here. However, I've 
> was today shown this (See link below) and asked "if they can do it, why can't 
> you?". 
> 
> http://m.gunwharf-quays.com/whats-on/policing-through-ages
> 
> If you open the above link on an iPhone and then click the Add to Calendar 
> button, you will that it appears to add an event to the calendar WITHOUT 
> asking the user for permission! How does it manage to do it? I thought that 
> the OS would intercept any Calendar access calls and show the Alert Box and 
> ask the user for permission to access the Calendar, but this doesn't seem to 
> be the case here. Is this because it's being run in Safari? Can I get the 
> same behaviour from an iOS Native App?

I believe the important part here is that the user *has* to explicitly say they 
want to add the event. Doing this without an extra confirmation step may be a 
privilege granted only to Safari since it can guarantee there's no code running 
which can attempt to fake a click on the button.
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