fetch arrayBuffer Android

Tried to fetch a local file into an Array Buffer. First try with XHR. iOS: ok - Android: faild. Second try with fetch. Same result again. This is my script error or tabris.js error?

Textscript

var filename = tabris.app.getResourceLocation('src/img/framework7.png');
console.log(filename);

fetch(filename).then(function(response) {
    return response.arrayBuffer();
  }).catch(function(err) {
	console.error(err);
  }).then(function(buffer) {
	console.log(typeof buffer);
	console.log(buffer);
});

Output (iOS, Android)

[ghost]

@mpost you only get my trouble - but behind: tabris.js really rocks!

[ghost]

@karolszafranski Thanks for this tip! With tonights nightly platform I tested successful to get arrayBuffer, text, json. Thank you! I will close this issue.

By the way: I read about a common method: users always choose response.text and convert the result into required destination type. So they can handle malformed files better - e.g. malformed json.