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Posted to commits@cordova.apache.org by GitBox <gi...@apache.org> on 2020/04/07 19:42:57 UTC

[GitHub] [cordova-plugin-network-information] jringbox opened a new issue #106: net::ERR_INTERNET_DISCONNECTED with cordova-plugin-network-information

jringbox opened a new issue #106: net::ERR_INTERNET_DISCONNECTED with cordova-plugin-network-information
URL: https://github.com/apache/cordova-plugin-network-information/issues/106

# Bug Report

## Problem
net::ERR_INTERNET_DISCONNECTED error occurs when cordova-plugin-network-information plugin is added and no internet connectivity is available.

### What is expected to happen?
cordova-plugin-network-information should provide ability to check whether internet connectivity is available but not terminate the application from the lack of internet. What I plan to do by design is check within VueJS context for network connectivity and show a VueJS offline page but I can't do this is cordova-plugin-network-information prevents me from getting to VueJS context.

### What does actually happen?
net::ERR_INTERNET_DISCONNECTED error occurs when cordova-plugin-network-information plugin is added and application is halted from proceeding to VueJS pages.

## Information
The following steps can be taken to reproduce the issue.

1. vue create offline (use default settings)
2. cd offline
3. vue add cordova (press enter on everything and only select android platform)
4. cd src-cordova
5. cordova plugin add cordova-plugin-network-information
6. add the following to VueJS index.html at bottom.

`<script type="text/javascript" src="index.js"></script>`

7. create index.js with the following.

```
var app = {
initialize: function () {
document.addEventListener('deviceready', this.onDeviceReady.bind(this), false);
},
onDeviceReady: function () {
document.addEventListener("offline", function (e) {
alert ("offline detected!");
}, false);
this.receivedEvent('deviceready');
}
};
app.initialize();
```

8. setup Android Studio for Pixel-2-API-R emulation
9. npm run cordova-serve-android
10. After android emulator has application installed, go to top navigation menu and turn off cell via the bi-directional icon.
11. Navigate and run VueExampleAppName which was just installed
12. Upon startup, you should get something similar to the following where LOCALHOST is the machine's local IP address.

```
Webpage not available

The webpage at http://LOCALHOST:8080/ could not be loaded becasue:

net::ERR_INTERNET_DISCONNECTED
```

While it is true that there is no internet, the problem is that the plugin is supposed to only provide network information. The application should still allow to run and show the VueJS page. Removing the plugin, does resolve the issue but network detecting for user notification is still desired for complete product implementation.

The desired result would be to show the VueJS page regardless of whether internet is available. The plugin does work fine if WiFi is not available but not when there is no internet/cell network.

### Command or Code
See above.

### Environment, Platform, Device
Development is done on Windows 10 Enterprise. Not sure if it matters, but I have Android Studio version 3.6.1 which was used to setup Pixel-2-API-R android emulator.

### Version information
Only android platform is use as shown in the example above.

Dependencies in package.json are as follows.

"cordova-android": "~8.1.0",
"cordova-plugin-network-information": "^2.0.2"

VueJS package.json does have vue-cli-plugin-cordova which might be relevant. The devDependencies for VueJS package.json is as follows.

"@vue/cli-plugin-babel": "~4.3.0",
"@vue/cli-plugin-eslint": "~4.3.0",
"@vue/cli-service": "~4.3.0",
"babel-eslint": "^10.1.0",
"eslint": "^6.7.2",
"eslint-plugin-vue": "^6.2.2",
"vue-cli-plugin-cordova": "~2.4.1",
"vue-template-compiler": "^2.6.11"

## Checklist

- [X] I searched for existing GitHub issues
- [X] I updated all Cordova tooling to most recent version
- [X] I included all the necessary information above

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