问题
I have an iPad app that uses the WKSelectionGranularityCharacter option of a WKWebView. It worked fine on an iOS 8 device and works on an 8.4 simulator but is broken on 9.1. A long press on text shows the magnifier but upon release no text is highlighted nor do any selection handles appear.
Is anyone else seeing this changed/broken behavior? Is there a workaround?
Update 10/31/2015: Also fails on XCode 7.2 and iOS 9.2 beta. Reported to Apple as a bug.
Update 11/26/2015: Still broken in latest XCode. No response or even a ranking at Apple's bugreport site.
来源：https://stackoverflow.com/questions/33429158/wkselectiongranularitycharacter-option-of-wkwebview-broken-in-ios-9