This link redirects to a partner website via Javascript; Adwords Conversion Tracking (standard template) is firing via URL rule in Tag Manager:
Link to a partner website including conversion tracking
BUG: In Safari (e.g. iPhone) the redirect is blocked and the user is not forwarded to the partner website.

This link uses the exact same code, but Adwords Conversion Tracking does not fire (excluded via Tag Manager Rule):
Link to a partner website without conversion tracking firing
NO BUG: When Adwords Conversion Tracking doesn't fire, the redirect also works on Safari.