Created attachment 238602 [details] Reproduction To repro: 1. Install any custom keyboard on iOS 8 (I tried Keymoji https://itunes.apple.com/us/app/keymoji-emoji-autocomplete/id886476394?mt=8). 2. Set the custom keyboard as the default keyboard. 3. Open the reproduction. 4. Type in textarea. 5. The latest keydown event should be displayed on the page (and inspector console). However, the event doesn't fire and there is no output.
<rdar://problem/18450468>
This was fixed in iOS 8.3 and later (iOS 8.4, 8.4.1, 9.0) by a change to UIKit.