Cache manifest works fine and events fired in safari in IOS 8. Not working at all in WKWebView anyone else solve this issue?
import UIKit
import WebKit
I think you are trying to solve the same problem as I do. This is what I do.
The benefit is that your app will always start even when the user's network isn't good. Here's the SWIFT code that I use, courtesy of Matt Neuberg (https://books.google.com/books?id=wLaVBQAAQBAJ&pg=PT669&lpg=PT669&dq=addConstraints+wkwebview&source=bl&ots=7trE7MR1zR&sig=VT6GDBGbDw9dh89wDb5Uajd4gUY&hl=en&sa=X&ei=cyyeVNH4MM3ToATukoDgAQ&ved=0CDkQ6AEwBA#v=onepage&q=addConstraints%20wkwebview&f=false). If you want the full source code, please let me know and I'll post it on Github.
let templatepath = NSBundle.mainBundle().pathForResource("index", ofType: "html")!
let base = NSURL(string:"http://m.ftchinese.com/iphone-2014.html#iOSShare")
var s = NSString(contentsOfFile:templatepath, encoding:NSUTF8StringEncoding, error:nil)!
self.webView!.loadHTMLString(s, baseURL:base)