On iPad (iOS 9) and using the desktop version of the wikipedia, the first time a page is loaded, a link can only be followed if the link is tapped twice. On the first tap, the link becomes underlined and on the second, the link is followed.
Steps to reproduce:
- Use desktop version of wikipedia (on an iPad).
- Load homepage.
- Tap any link (becomes undelined).
- Tap again (goes to page).
Expected behavior: the link is followed on the first tap.
I've tested this on two different iPads with the same result.