email link in pdf file is leading to crash

If a pdf file with an email link is when open in Qt's simple browser example and the email link  is clicked. It is expected that it opens email client but it is leading to crash the application.

Attached file can be used to reproduce this with simple browser example.

Steps:

Run simple browser example

load pdf file

click on xyz@... link to crash it.

Same pdf when opened with google chrome it works.