New blank app with latest ionic - stuck on splash screen

[dennis3001]

When I try to run a new blank app that I just created it hangs on splash screen.
Here is the output in Xcode:
objc[26207]: Class PLBuildVersion is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices (0x11005a910) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibraryServices.framework/PhotoLibraryServices (0x10fded210). One of the two will be used. Which one is undefined.
2017-12-05 23:53:25.714688 MyApp[26207:1446869] subsystem: com.apple.UIKit, category: HIDEventFiltered, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2017-12-05 23:53:25.900011 MyApp[26207:1446869] subsystem: com.apple.UIKit, category: HIDEventIncoming, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2017-12-05 23:53:25.917109 MyApp[26207:1446855] subsystem: com.apple.BaseBoard, category: MachPort, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
2017-12-05 23:53:26.009 MyApp[26207:1446789] DiskCookieStorage changing policy from 2 to 0, cookie file: file:///Users/dennisbutovetsky/Library/Developer/CoreSimulator/Devices/2F159FC2-FC3D-4B98-BA8E-74452F0EA6E5/data/Containers/Data/Application/7BB66E12-8F7E-4244-A826-8E23A02E2FCF/Library/Cookies/io.ionic.starter.binarycookies
2017-12-05 23:53:26.017564 MyApp[26207:1446789] subsystem: com.apple.libsqlite3, category: logging, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2017-12-05 23:53:26.295580 MyApp[26207:1446789] subsystem: com.apple.UIKit, category: StatusBar, enable_level: 0, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2017-12-05 23:53:26.397 MyApp[26207:1446789] Apache Cordova native platform version 4.3.1 is starting.
2017-12-05 23:53:26.403 MyApp[26207:1446789] Multi-tasking -> Device: YES, App: YES
2017-12-05 23:53:26.437 MyApp[26207:1446789] CDVWKWebViewEngine: trying to inject XHR polyfill
2017-12-05 23:53:26.643549 MyApp[26207:1446789] subsystem: com.apple.UIKit, category: GestureEnvironment, enable_level: 0, persist_level: 0, default_ttl: 1, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 1, privacy_setting: 2, enable_private_data: 0
2017-12-05 23:53:26.644 MyApp[26207:1446789] CDVWKWebViewEngine will reload WKWebView if required on resume
2017-12-05 23:53:26.645 MyApp[26207:1446789] Using Ionic WKWebView
2017-12-05 23:53:26.647 MyApp[26207:1446789] [CDVTimer][handleopenurl] 0.232041ms
2017-12-05 23:53:26.717 MyApp[26207:1446789] [CDVTimer][intentandnavigationfilter] 68.947017ms
2017-12-05 23:53:26.731 MyApp[26207:1446789] [CDVTimer][gesturehandler] 0.446975ms
2017-12-05 23:53:26.746 MyApp[26207:1446789] [CDVTimer][keyboard] 8.565009ms
2017-12-05 23:53:26.912 MyApp[26207:1446789] [CDVTimer][splashscreen] 164.066017ms
2017-12-05 23:53:26.913 MyApp[26207:1446789] [CDVTimer][TotalPluginStartup] 265.953004ms
2017-12-05 23:53:27.148900 MyApp[26207:1446789] subsystem: com.apple.BackBoardServices.fence, category: App, enable_level: 1, persist_level: 0, default_ttl: 0, info_ttl: 0, debug_ttl: 0, generate_symptoms: 0, enable_oversize: 0, privacy_setting: 0, enable_private_data: 0
2017-12-05 23:54:29.852 MyApp[26207:1446789] Failed to load webpage with error: The request timed out.

Here is my config.xml:

<content src="index.html" /> <access origin="*" /> <allow-intent href="http://*/*" /> <allow-intent href="https://*/*" /> <allow-intent href="tel:*" /> <allow-intent href="sms:*" /> <allow-intent href="mailto:*" /> <allow-intent href="geo:*" /> <preference name="ScrollEnabled" value="false" /> <preference name="android-minSdkVersion" value="16" /> <preference name="BackupWebStorage" value="none" /> <preference name="SplashMaintainAspectRatio" value="true" /> <preference name="FadeSplashScreenDuration" value="300" /> <preference name="SplashShowOnlyFirstTime" value="false" /> <preference name="SplashScreen" value="screen" /> <preference name="SplashScreenDelay" value="3000" /> <allow-navigation href="http://localhost:8080/*" /> <feature name="CDVWKWebViewEngine"> <param name="ios-package" value="CDVWKWebViewEngine" /> </feature> <preference name="CordovaWebViewEngine" value="CDVWKWebViewEngine" />

Here is the output of "ionic info":

_cli packages: (/usr/local/lib/node_modules)

@ionic/cli-utils  : 1.15.2
ionic (Ionic CLI) : 3.15.2

global packages:

cordova (Cordova CLI) : 6.5.0 

local packages:

@ionic/app-scripts : 3.1.0
Cordova Platforms  : ios 4.3.1
Ionic Framework    : ionic-angular 3.9.2

System:

ios-deploy : 1.9.0 
ios-sim    : 5.0.8 
Node       : v6.10.2
npm        : 3.10.10 
OS         : OS X El Capitan
Xcode      : Xcode 8.0 Build version 8A218a 

Environment Variables:

ANDROID_HOME : not set

Misc:

backend : legacy_

[imransilvake]

I have the same issue. when I install this plugin, screen gets stuck on splash screen.

I got this errors:

1. deviceready has not fired after 5 seconds.
2. Channel not fired: onDOMContentLoaded

any help would be appreciated

[favrio]

Same issue.
But I was keeping my app in background a long time before open it.

Sometime when i build the app in xcode, it throws an error to me.

Failed to load webpage with error: Could not connect to the server.

@ionic/cli-utils : 1.19.0
ionic (Ionic CLI) : 3.19.0

global packages:

cordova (Cordova CLI) : 7.1.0 

local packages:

@ionic/app-scripts : 3.1.0
Cordova Platforms  : android 6.3.0 ios 4.5.4
Ionic Framework    : ionic-angular 3.9.2

System:

ios-deploy : 1.9.2 
Node       : v8.9.1
npm        : 5.5.1 
OS         : macOS Sierra
Xcode      : Xcode 9.2 Build version 9C40b 

Environment Variables:

ANDROID_HOME : not set

Misc:

backend : legacy

[cryo243]

Has this issue been resolved?
I am experiencing something similar after force closing the app and reopening it after 12 to 15 hours the next day (which is sometimes the behaviour of certain of our app users)
The app get stuck on the splashscreen and it does not happen when I remove this plugin and use the default operating system webview of the handset.

[cryo243]

@ionic/cli-utils  : 1.15.2
ionic (Ionic CLI) : 3.15.2

global packages:

cordova (Cordova CLI) : 7.0.1 

local packages:

@ionic/app-scripts : 3.0.1
Cordova Platforms  : android 6.3.0 ios 4.5.4
Ionic Framework    : ionic-angular 3.7.1

System:

ios-deploy        : 1.9.2 
ios-sim           : 6.0.0 
Node              : v8.4.0
npm               : 5.3.0 
OS                : macOS High Sierra
Xcode             : Xcode 9.2 Build version 9C40b 

Environment Variables:

Misc:

backend : legacy

[cryo243]

Hi guys, I thought I will give an update on this issue since this is really becoming a big issue. We went down to the bottom of the problem. Our app make use of the cordova plugin firebase for crash reports and analytics and push notifications. These wake up the app at random intervals but do not bring it (the app) in foreground mode. We noticed that whenever that happens the next time someone will try to open the app manually it will hang on the spalsh screen. It seems like it is skipping most lifecycle hook and goes directly to the "applicationWillEnterForeground" function with the following
CDVWKWebViewEngine title: ( empty string)
CDVWKWebViewEngine : (null)
CDVWKWebViewEngine reload: false
Any idea ?

[misaxi]

My app opens okay but it will hang after running for 6 - 10 hours. Usually, I noticed this because I tap the push notification which brings me to the app. The app goes through cold start because it displays the splash screen. And the splash screen stays there forever for whatever reason. I don't even know where to start the investigation. I think this is a variation to what happens to @cryo243

[cryo243]

Hi guys. I forgot to update the thread after my findings. the ionic plugin webview makes use of the https://github.com/swisspol/GCDWebServer webserver to serve the html assets/pages and so on.
Based on swisspol/GCDWebServer#144 , the webserver is automatically suspended by default when it is started without the GCDWebServerOption_AutomaticallySuspendInBackground:@(NO option. That's the reason of the "hang". What happens is that push notifications, or any background services like tracking user locations and so on wakes up the app in background mode but does not bring up the UI(like in my case). The webserver is started but will be suspended after not receiving xhr requests. Hence, when you try opening your app manually, the splashscreen stays idle waiting for cordova to notify it that the webview is ready.
What I ended up doing is, I forked the ionic plugin repository and added that flag. Since then we haven't had that issue. I am looking forward to submit a PR to the ionic plugin webview team to hear what they will say. At the moment you are welcome to use it https://github.com/cryo243/cordova-plugin-ionic-webview. It has unecessary checks that I am also planning to remove

[misaxi]

@cryo243 this is great news! Thanks for sharing this with us. When do you plan to put the PR? I suggest to separate it into two PRs.

• One to address Web Server suspension issue, which fixes this critical issue to long-running apps. This would be a huge win 👍
• The other is to do the clean-ups

Looking forward to it!

[cryo243]

@misaxi , There is already a pull request for the same issue #45. I would suggest rather use that fork until the ionic plugin webview team accepts the PR.

[giladrom]

I just recently started using Ionic and immediately had a problem with my background app not resuming due to this. How do Ionic apps usually stay running for a long time without this patch?