Unable to load webpage in WKWebView

Question

I have an app that is a simple WebKit that shows a webpage that is fronted by an nginx reverse proxy that forwards you to another page that no longer works on ios 12, though it works fine on ios 11. When it tries to load in the emulator or on a physical device it flashes the screen a couple times then goes to a white screen that shoes nothing and I see no errors in the console log.

--EDIT-- I'm now seeing this error in the console:

2018-10-02 20:27:57.332338-0500 PawsClaws-iOS[56878:10395839] 
[BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C2.1:2] . 
[0x7fb677418f80] get output frames failed, state 8196

import UIKit
import WebKit

class ViewController: UIViewController, WKUIDelegate {
    @IBOutlet weak var webView: WKWebView!

    override func viewDidLoad() {
        super.viewDidLoad()

        let url = URL(string: "http://inserturlhere")
    //        let url = URL(string: "https://apple.com")
        webView.load(URLRequest(url: url!))
    }
}

I've tried looking at the logs on safari using devtools, but unfortunately I don't see anything. If I change the url to point at another URL that does not redirect (ie google) it works just fine. Also, I can open the same url in a regular browser session with any browser (Chrome, Safari, Firefox). Can anyone help point me in a direction to diagnose this?

check if webView is on screen by applying background color or something like this.. i think it could be problem — SuryaKantSharma, Sep 28 '18 at 04:19
The webview works if I use another url so it's not an issue with the webview. — Mitch Davis, Sep 28 '18 at 04:25
I had the same problem and I solved this way: https://stackoverflow.com/a/56966367/8818448 — Pablo Blanco, Jul 10 '19 at 08:22

score 1 · Answer 1 · answered Sep 28 '18 at 02:50

1

    <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
        <key>NSExceptionDomains</key>
        <dict>
            <key>abc.com</key>
            <dict>
                <key>NSExceptionAllowsInsecureHTTPLoads</key>
                <true/>
                <key>NSIncludesSubdomains</key>
                <true/>
            </dict>
        </dict>

</dict>

Have you added this to your info.plist?

answered Sep 28 '18 at 02:50

DP's

209
1
4

1

I have not, I just tried and I got the same error. Is this something new in ios12 that they don't allow redirects/subdomains? – Mitch Davis Sep 28 '18 at 03:00
I'm seeing this error now: 2018-10-02 20:27:57.332338-0500 PawsClaws-iOS[56878:10395839] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C2.1:2][0x7fb677418f80] get output frames failed, state 8196 – Mitch Davis Oct 03 '18 at 01:33

Unable to load webpage in WKWebView

1 Answers1