nl_tokens: Fallback to old WebView where SFSafariViewController is not supported
pl_tokens: function WebView ( ) { this . tab = null ; this . handler = null ; this . open = this . open . bind ( this ) ; this . handleFirstLoadEnd = this . handleFirstLoadEnd . bind ( this ) ; this . handleLoadError = this . handleLoadError . bind ( this ) ; this . handleExit = this . handleExit . bind ( this ) ; this . clearEvents = this . clearEvents . bind ( this ) ; this . close = this . <mask> . bind ( this ) ; }