[CB-13743] Adding this plugin breaks all instances of FileReader's already existing within an ionic project when deployed on Android (work on web)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Ionic

Environment

Android 6.0.0

• Assignee: Unassigned
• Reporter: Jonathan Kelsey
• Created: 09/Jan/18 15:51
• Updated: 15/May/18 04:43

Description

By adding the following to an ionic project:

In the package.json
+ "@ionic-native/media-capture": "^4.5.2",
In the config.xml
+ <plugin name="cordova-plugin-media-capture" spec="^3.0.1" />

After this a code sample like this:

var result = null;
 var reader = new FileReader();

      reader.onloadend = function (encodedFile: any) {
       result = encodedFile.target.result;
      };
        reader.onerror = function() {
          console.error("some error with reader")
        };
      reader.readAsDataURL(file);

or another example:

var result = null;
  var reader  = new FileReader();
        reader.onload = function() {
          result=reader.result; 
        };
        reader.onerror = function() {
          console.error("some error with reader")
        };
        //reader.readAsDataURL(file); 
        //reader.readAsBinaryString(file);
        reader.readAsArrayBuffer(file)

In all cases result is not defined. No errors are emitted.