I've same issue as here : Strange behavior with WKWebView's loadHTMLString method. Images are not loading sometimes
I load html from a string who's have img tags targeting locals files. It's work fines in UIView but not in WKWebView (with same html string).
In safari debugger, i see thats they're no requests started for all imgs ressources !
The solution gived in the post quoted above doesn't work for me (i already had set the NSAppTransportSecurity.
I'm using Swift 2 / Xcode 7.2 / iOS 9.0
How can i do ?