Chrome on Android is blocking redirects to applications that are not done through a user gesture.
Therefore, via javascript it is not possible to redirect the user to the email application, since Chrome 40, only if you put it for example on a href button, which will work when the user clicks the button.
Here’s a discussion on the subject in the Chrome forum.
If you inspect the element you see a message like
Navigation is blocked: mailto:?...
You can try to do this way, as I mentioned before that is by adding a href.
var email = document.createElement('a');
email.style.visibility = 'hidden';
email.style.position = 'absolute';
email.href = 'mailto:[email protected]?subject=subject&body=body';
document.body.appendChild(email);
And after that when you run you can do so.
email.click();
Have you tried
window.location.href = "mailto:[email protected]"
this should open the user’s default email client...– hugocsl