MatGu First of all, you are not supposed to complain anything if you use a webview implementation (that too on a official thread where we are discussing the bugs in the official release, if you have said that you are using a webview, this discussion would been over long back)
Secondly, on your webview implementation, ask you developer to enable the pull to refresh and it will work.
Just because your implementation is bad, don't blame the feature !!!