bug: Android Capacitor Http Issue "Attempt to invoke virtual method ... getClass"

[h3786010]

Bug Report

Capacitor Version

@capacitor/cli: 4.7.3
@capacitor/core: 4.7.3
@capacitor/android: 4.7.3
@capacitor/ios: 4.7.3

Platform(s)

Android

Current Behavior

First using Capacitor Http request return the error after launch app

Expected Behavior

Code Reproduction

https://github.com/h3786010/capacitor-http-bug-repro

App.vue

<script setup>
import { onMounted } from 'vue'
import { CapacitorHttp } from '@capacitor/core'

onMounted(async () => {

  await CapacitorHttp.post({
    url: 'https://mydomain/api/foo',
    headers: {
      "Content-Type": "application/json",
    },
    webFetchExtra: {
      credentials: "include",
    },
  }).then((response) => {
    alert(JSON.stringify(response.data));
  }).catch((error) => {
    alert(error.message);
  })

})
</script>

<template>
  hello world!
</template>

capacitor.config.json

{
  "appId": "com.example.app",
  "appName": "test",
  "webDir": "dist",
  "bundledWebRuntime": false,
  "server": {
    "allowNavigation": [
      "mydomain"
    ]
  },
  "plugins": {
    "CapacitorHttp": {
      "enabled": true
    }
  }
}

Other Technical Details

npm --version 8.19.3

node --version v18.13.0

pod --version output (iOS issues only):

Additional Context

[Vansinnesvisor]

Can confirm, POST requests not working. This issue broke my app release in Android.
Works well with server property in capacitor.config.ts (dev mode).
Currently rollback to 4.7.2.

Same error in Run console

[Ionitron]

This issue may need more information before it can be addressed. In particular, it will need a reliable Code Reproduction that demonstrates the issue.

Please see the Contributing Guide for how to create a Code Reproduction.

Thanks!
Ionitron 💙

[zarko-tg]

Is there an actual issue with CapacitorHttp.post on Android?
We're seeing the same kind of error both on device and on emulator when running in prod mode.

code: "NullPointerException"
data: undefined
message: "Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference"
stack: "Error: Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference\n at returnResult (http://localhost/:760:32)\n at win.androidBridge.onmessage (http://localhost/:735:21)"

[elenche]

Same issue here, tested on @capacitor/android versions 4.7.1 and 4.7.3, both on device and simulator. It happens only on the first app installation. On subsequent opens the POST calls work as expected.

@zarko-tg Downgrading to @capacitor/[email protected] solved the issue for me.

$ ionic info

Ionic:
   Ionic CLI                     : 6.16.3 (C:\Users\xyz\AppData\Roaming\npm\node_modules\@ionic\cli)
   Ionic Framework               : @ionic/angular 6.7.1
   @angular-devkit/build-angular : 14.2.11
   @angular-devkit/schematics    : 14.2.11
   @angular/cli                  : 14.2.11
   @ionic/angular-toolkit        : 6.1.0

Capacitor:
   Capacitor CLI      : 4.7.3
   @capacitor/android : 4.7.2
   @capacitor/core    : 4.7.3
   @capacitor/ios     : 4.7.3

Utility:
   cordova-res (update available: 0.15.4) : 0.15.3
   native-run                             : 1.7.2

System:
   NodeJS : v18.12.1 (C:\Program Files\nodejs\node.exe)
   npm    : 8.19.2
   OS     : Windows 10

[jcesarmobile]

Sorry, I missed the link, but sadly, I've tested it now and can't reproduce the issue on the provided app.

A customer has reported a similar issue with a proper reproduction and a coworker is looking into it, so if it turns out being the same issue, it will be fixed soon, but would help if we had a proper reproduction in this issue too so we can verify it's the same issue.

[h3786010]

Working well after upgrade 4.8.0
Thank You!

need additional settings CapacitorCookies in my app project
capacitor.config.json

"plugins": {
  "CapacitorHttp": {
    "enabled": true
  }
}

to

"plugins": {
  "CapacitorCookies": {
    "enabled": true
  },
  "CapacitorHttp": {
    "enabled": true
  }
}

[adnbrownie]

I can confirm that the described issue is no longer happening with 4.8.0 when having both CapacitorHttp & CapacitorCookie enabled in capacitor.config.json, as @h3786010 described. Enabling only CapacitorHttp alone does not work, though.

[h3786010]

@adnbrownie Because my APP works through Session, Maybe CapacitorCookie needs to be explicitly set in version 4.8.0

[jcesarmobile]

This is fixed in Capacitor 4.8.0 and Capacitor 5.0.0 and newer.
It shouldn't require to set CapacitorCookies to true, I don't get the error on my sample app anymore after updating to 4.8.0 and it doesn't have CapacitorCookies set to true .
For those that it doesn't work unless you add CapacitorCookies set to true, please, create a new issue and provide a sample app where it can be reproduced as that shouldn't be needed.