Use [KINWebBrowserViewController class] instead of [self class].

[mattia]

Using [KINWebBrowserViewController class] instead of [self class] allows to retrieve back/forward images correctly when subclassing KINWebBrowserViewController.
If you subclass KINWebBrowserViewController (including it in your application using CocoaPods with framework) the path to the image resource could be wrong. This fixes the problem.

[maxoly]

+1

[wei]

Temporary Workaround:

1. Drag backbutton & forwardbutton to your project
2. Override viewWillAppear

override func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)

    self.navigationController?.toolbar.items?[0].image = UIImage(named: "backbutton")
    self.navigationController?.toolbar.items?[2].image = UIImage(named: "forwardbutton")
}

[edwinruan]

This pull request is a correct fix to the problem. Please have it merged and have a new version.

[edwinruan]

@dfmuir Thank you very much for the quick action and merging!