btn dropdown broken mobile

[mocerinoj]

Tested on both iOS 5+ and android 4.0.4.. Menu items in dropdown from btn in navbar not clickable
div class=btn group
a class=btn dropdown-toggle data-toggle=dropdown
ul class=dropdown-menu
li
a

[lucatrev]

Same issue with default android 2.3.3 browser

[dpwolf]

Duplicate of #4550

[mdo]

Closing as dupe.