6.1.0 and signalR not working

Description

hello guys, we are trying to upgrade cordova-ios to 6.1.0 since uiwebview is deprecated and wont be accepted on stores anymore. we had everything working on uiwebview. i managed to make XMLHttpRequest work with null origin, and we are able to make api calls again. but we are facing a problem with signalR, it seems that it’s not able to connect. i am not able to figure out the problem.

What is expected to happen?

signalR to connect normally to the server.

What does actually happen?

signal R isn’t able to connect.

Information

for a start i got this call:

Summary
URL: http://192.168.47.105:55554/signalr/connect?transport=serverSentEvents&clientProtocol=1.5&connectionToken=OC0LMC6PzDP%2BbksoG4PF3OlmAX6ScrTdg3yOxtaZFnHAspQjvqfFpDSCIWJGLNME%2FlCUg86Vpg1h12VOoR2uB0b2LyBVPbsRU%2BVo%2BNONkFIgdFfNcVahRec6xURdjwMs&connectionData=%5B%7B%22name%22%3A%22kindoohub%22%7D%5D&tid=9
Status: 200 OK
Source: Network

Request
Accept: text/event-stream
Cache-Control: no-cache
Origin: null
User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 13_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148
Pragma: no-cache

Response
Content-Type: text/event-stream
Access-Control-Allow-Origin: null
Pragma: no-cache
Access-Control-Allow-Methods: GET, POST
Expires: -1
Transfer-Encoding: Identity
Access-Control-Allow-Headers: Content-Type
Cache-Control: no-cache
Date: Wed, 15 Jul 2020 12:37:22 GMT
Access-Control-Allow-Credentials: true
X-Content-Type-Options: nosniff
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Server: Microsoft-IIS/7.5

Query String Parameters
transport: serverSentEvents
clientProtocol: 1.5
connectionToken: OC0LMC6PzDP+bksoG4PF3OlmAX6ScrTdg3yOxtaZFnHAspQjvqfFpDSCIWJGLNME/lCUg86Vpg1h12VOoR2uB0b2LyBVPbsRU+Vo+NONkFIgdFfNcVahRec6xURdjwMs
connectionData: [{"name":"kindoohub"}]
tid: 9

although the status is 200 ok, it is marked in red, and the preview shows an error occured trying to load the resource. then i get this in console: XMLHttpRequest cannot load http://192.168.47.105:55554/signalr/abort?transport=serverSentEvents&clientProtocol=1.5&connectionToken=OC0LMC6PzDP%2BbksoG4PF3OlmAX6ScrTdg3yOxtaZFnHAspQjvqfFpDSCIWJGLNME%2FlCUg86Vpg1h12VOoR2uB0b2LyBVPbsRU%2BVo%2BNONkFIgdFfNcVahRec6xURdjwMs&connectionData=%5B%7B%22name%22%3A%22kindoohub%22%7D%5D.

now this is my config.xml:

<?xml version='1.0' encoding='utf-8'?>
<widget id="{{myappid}}" version="3.6.3" xmlns="http://www.w3.org/ns/widgets" xmlns:gap="http://phonegap.com/ns/1.0">
    <name>kindoo</name>
    <description>
        kindoo is an application that transforms any electric lock to a smart lock
    </description>
    <author email="[e-mail]" href="http://codegears.com">
        Code gears
    </author>
    <content src="index.html" />
    <preference name="permissions" value="none" />
    <preference name="orientation" value="default" />
    <preference name="target-device" value="universal" />
    <preference name="fullscreen" value="true" />
    <preference name="webviewbounce" value="true" />
    <preference name="prerendered-icon" value="true" />
    <preference name="stay-in-webview" value="false" />
    <preference name="ios-statusbarstyle" value="black-opaque" />
    <preference name="detect-data-types" value="true" />
    <preference name="exit-on-suspend" value="false" />
    <preference name="ShowSplashScreenSpinner" value="false" />
    <preference name="AutoHideSplashScreen" value="false" />
    <preference name="disable-cursor" value="false" />
    <preference name="android-minSdkVersion" value="14" />
    <preference name="android-installLocation" value="auto" />
    <preference name="DisallowOverscroll" value="true" />
    <preference name="StatusBarOverlaysWebView" value="false" />
    <preference name="StatusBarBackgroundColor" value="#142515" />
    <preference name="CordovaWebViewEngine" value="CDVWKWebViewEngine" /> 
    
    <gap:plugin name="org.apache.cordova.battery-status" />
    <gap:plugin name="org.apache.cordova.camera" />
    <gap:plugin name="org.apache.cordova.media-capture" />
    <gap:plugin name="org.apache.cordova.console" />
    <gap:plugin name="org.apache.cordova.contacts" />
    <gap:plugin name="org.apache.cordova.device" />
    <gap:plugin name="org.apache.cordova.device-motion" />
    <gap:plugin name="org.apache.cordova.device-orientation" />
    <gap:plugin name="org.apache.cordova.dialogs" />
    <gap:plugin name="org.apache.cordova.file" />
    <gap:plugin name="org.apache.cordova.file-transfer" />
    <gap:plugin name="org.apache.cordova.geolocation" />
    <gap:plugin name="org.apache.cordova.globalization" />
    <gap:plugin name="org.apache.cordova.inappbrowser" />
    <gap:plugin name="org.apache.cordova.media" />
    <gap:plugin name="org.apache.cordova.network-information" />
    <gap:plugin name="org.apache.cordova.splashscreen" />
    <gap:plugin name="org.apache.cordova.vibration" />
    <platform name="ios">
        
        <allow-intent href="itms:*" />
        <allow-intent href="itms-apps:*" />
        <allow-navigation href="http://192.168.47.105:55554/*" />
        <allow-navigation href="http://www.{{mydomainname}}.tech/*" />
        <allow-navigation href="http://*.{{mydomainname}}.tech/*" />
        <allow-navigation href="https://www.{{mydomainname}}.tech/*" />
        <allow-navigation href="https://*.{{mydomainname}}.tech/*" />
        <icon height="20" src="res/icon/ios/icon-20.png" width="20" />
        <icon height="40" src="res/icon/ios/[e-mail]" width="40" />
        <icon height="60" src="res/icon/ios/[e-mail]" width="60" />
        <icon height="29" src="res/icon/ios/icon-29.png" width="29" />
        <icon height="58" src="res/icon/ios/[e-mail]" width="58" />
        <icon height="87" src="res/icon/ios/[e-mail]" width="87" />
        <icon height="40" src="res/icon/ios/icon-40.png" width="40" />
        <icon height="80" src="res/icon/ios/[e-mail]" width="80" />
        <icon height="120" src="res/icon/ios/[e-mail]" width="120" />
        <icon height="50" src="res/icon/ios/icon-50.png" width="50" />
        <icon height="100" src="res/icon/ios/[e-mail]" width="100" />
        <icon height="57" src="res/icon/ios/icon-57.png" width="57" />
        <icon height="114" src="res/icon/ios/[e-mail]" width="114" />
        <icon height="120" src="res/icon/ios/[e-mail]" width="120" />
        <icon height="180" src="res/icon/ios/[e-mail]" width="180" />
        <icon height="72" src="res/icon/ios/icon-72.png" width="72" />
        <icon height="144" src="res/icon/ios/[e-mail]" width="144" />
        <icon height="76" src="res/icon/ios/icon-76.png" width="76" />
        <icon height="152" src="res/icon/ios/[e-mail]" width="152" />
        <icon height="167" src="res/icon/ios/[e-mail]" width="167" />
        <icon height="1024" src="res/icon/ios/icon-1024.jpg" width="1024" />
        <splash src="res/screen/ios/Default@2x~iphone~anyany.png" />
        <splash src="res/screen/ios/Default@2x~iphone~comany.png" />
        <splash src="res/screen/ios/Default@2x~iphone~comcom.png" />
        <splash src="res/screen/ios/Default@3x~iphone~anyany.png" />
        <splash src="res/screen/ios/Default@3x~iphone~anycom.png" />
        <splash src="res/screen/ios/Default@3x~iphone~comany.png" />
        <splash src="res/screen/ios/Default@2x~ipad~anyany.png" />
        <splash src="res/screen/ios/Default@2x~ipad~comany.png" />

        <edit-config file="*-Info.plist" mode="merge" target="NSBluetoothPeripheralUsageDescription">
            <string>Bluetooth is needed to communicate with KINs</string>
        </edit-config>
        <edit-config file="*-Info.plist" mode="merge" target="NSBluetoothAlwaysUsageDescription">
            <string>Bluetooth is needed to communicate with KINs</string>
        </edit-config>
        <edit-config file="*-Info.plist" mode="merge" target="NSCameraUsageDescription">
            <string>Camera is needed to take profile picture</string>
        </edit-config>
        <edit-config file="*-Info.plist" mode="merge" target="NSMicrophoneUsageDescription">
            <string>Microphone is needed to take a video</string>
        </edit-config>
        <edit-config file="*-Info.plist" mode="merge" target="NSPhotoLibraryUsageDescription">
            <string>Library is needed to upload profile picture</string>
        </edit-config>
        <edit-config file="*-Info.plist" mode="merge" target="NSLocationAlwaysUsageDescription">
            <string>Location is needed to communicate with KINs</string>
        </edit-config>
        <edit-config file="*-Info.plist" mode="merge" target="NSLocationWhenInUseUsageDescription">
            <string>Location is needed to communicate with KINs</string>
        </edit-config>
    </platform>
    <access origin='*' allows-arbitrary-loads-for-media='true' allows-arbitrary-loads-in-web-content='true' allows-local-networking='true' />
    <allow-navigation href="*" />
    <allow-intent href="http://*/*" />
    <allow-intent href="https://*/*" />
    <allow-intent href="tel:*" />
    <allow-intent href="sms:*" />
    <allow-intent href="mailto:*" />
    <allow-intent href="geo:*" />
    <feature name="CDVWKWebViewEngine">
    <param name="ios-package" value="CDVWKWebViewEngine" />
    <preference name="scheme" value="http" />
    <preference name="hostname" value="192.168.47.105" />
</feature>
</widget>

i have these customheaders in my server Web.config

<customHeaders>
        <add name="Access-Control-Allow-Headers" value="Content-Type" />
        <add name="Access-Control-Allow-Methods" value="GET, POST" />
        <add name="Access-Control-Allow-Credentials" value="true" />
</customHeaders>

and i have this code in Global.asax.cs to handle the null origin:

protected void Application_BeginRequest(object sender, EventArgs e)
       {
           if (Context.Request.UrlReferrer != null)
               HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", Context.Request.UrlReferrer.GetLeftPart(UriPartial.Authority)); //browser
           else
               HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "null"); //cordova
       }

and for my startup:

public class Startup
    {

        public void Configuration(IAppBuilder app)
        {
            try
            {
                string redisIP = ConfigurationManager.AppSettings["RedisIP"].ToString();
                int redisPort = int.Parse(ConfigurationManager.AppSettings["RedisPort"].ToString());
                GlobalHost.DependencyResolver.UseRedis(redisIP, redisPort, null, "SignalRChat");

                app.Map("/signalr", map =>
                {

                    //map.UseCors(CorsOptions.AllowAll);
                    var hubConfiguration = new HubConfiguration
                    {
                        EnableDetailedErrors = true,
                        EnableJavaScriptProxies = true,
                    };
                    
                    map.RunSignalR(hubConfiguration);
                });
            }
            catch (Exception ex)
            {
                File.WriteAllText(@"C:\Logs\ex" + DateTime.UtcNow.Ticks.ToString() + ".txt", ex.Message + " " + ex.StackTrace);
            }
        }

    }

i tried enabling signalr cors but with no use and different error thrown about allow credentials to be different than true. i cant find the error or what is causing this problem if anyone can help me.

Environment, Platform, Device

Backend: .Net 4.5 webapi cordova: 9.0.0 cordova-ios: 6.1.0 device: iphonex device ios: 13.5.1 SignalR: 2.2.1.0

Checklist

• I searched for existing GitHub issues
• I updated all Cordova tooling to most recent version
• I included all the necessary information above

[barakataboujreich]

well for now i used this plugin to sort out our cookies problem, cordova-plugin-wkwebview-inject-cookie . i can work with only IOS 11 for now, better than nothing, till we get a proper solution.

[gill367]

<preference name="scheme" value="http" />
<preference name="hostname" value="192.168.47.105" />

How does the scheme ‘http’ work for you. When I put it in config.xml. it uses the default app scheme instead.

http is a reserved scheme on iOS. Which is why it defaults to the app:// scheme, the cordova default.

and If I use a custom scheme like app:// dummy cookie injection does not work for me. So all subsequent xhr request using session cookies are receiving 401. Anybody is able to use cookie injection with app custom scheme?