I have an issue with Safari 5.1.7 and mailto links. Our QA has reported that it also happens in IE9. If i have a label with htmlText that creates a mailto link, my main application will disappear. I have tried several variations in a test app and our main app.
htmlText = "<a href='mailto:email@example.com'>Contact me</a>"; causes the app to disappear.
Adding an event listener and using navigateToUrl with mailto:firstname.lastname@example.org and window "_self" also causes the app to disappear.
From my event listener in Flex I do this (linkEmail is my mailto:):
This resolves my immediate problem. Our code has mailto links in quite a number of places. We will probably eventually use our own e-mail form but this works for now.