Initial Call Error: SyntaxError: Unexpected token u in JSON at position 0

[Stakdek]

Error-Message:

file:///android_asset/www/js/cordova-media-upload.js: Line 39 : Uncaught (in promise) SyntaxError: Unexpected token u in JSON at position 0
chromium: [INFO:CONSOLE(39)] "Uncaught (in promise) SyntaxError: Unexpected token u in JSON at position 0", source: file:///android_asset/www/js/cordova-media-upload.js (39)

Specs:

Device: Android Cordova App on Datalogic Memor 10 with Android 8.1.0
Cordova: 8.1.2 (cordova-lib@8.1.1)
Build on: Ubuntu 20.04

Code:

const cmu = new CordovaMediaUpload({
  "imageWidth": 640,
  "imageHeight": 480,
  "imageQuality": 50,
  "videoWidth": 640,
  "videoHeight": 480,
  "videoBitRate": 1000000
});

function getMedia(callback){
  cmu.getVideo()
    .then(data => {
      showUserAlert(data);
      callback();
    })
    .catch(error => {
      if(error) {
        navigator.notification.alert(_('album.failure'));
        showUserAlert(error); // shows message box on page
        throw error;
      }
    })
}

Already tried with

const cmu = new CordovaMediaUpload({
  imageWidth: 640,
  imageHeight": 480,
  imageQuality: 50,
  videoWidth: 640,
  videoHeight: 480,
  videoBitRate: 1000000
});
[…]

The error throws by calling getMedia. In getMedia the Error gets caught.
The error message is probably caused by the fact that in line 39 of your cordova-media-upload.js this.optionsObj is "undefined". Therefore, also "Unexpected token u in JSON at position 0". I can not say why it would be "undefined"…

But I could also be wrong, I haven't quite figured out your code yet.

I can't get past the error.
Please help.

[D-Marc1]

Hey @Stakdek, have you considered using CapacitorJS instead of Cordova first of all? I would highly recommend switching to Capacitor, as Cordova seems to be dying out.

As for your error, I remember getting that error when something was wrong with my AJAX call. It could also be that one of the Cordova plugins is broken.

As I stated though, switching to Capacitor is honestly the best move in my opinion. It's a much better ecosystem to work with and is basically the successor to Cordova.

[Stakdek]

Hey @D-Marc1!
The switch to CapacitorJS would not work for me…

In my code, I am not using any AJAX call, the code above is the only call it gets. The initial call is an only a Button.
Do you know which of the Cordova plugins could be broken?

The switch to CapacitorJS would escalate in work for me… so this is no option for me.

[D-Marc1]

I think it might be the VideoEditor plugin where it creates the thumbnail, specifically here. I remember when I was using Cordova there were annoyances over when I would have to append file://. It could also be this line, as I also had to append it there.

Can you try these plugins separately to confirm where the error comes from? Cordova Camera and Cordova Video Editor