Returning data from javascript call

Question

Hi all, So i have been using Godot for a few days now and i like it. I am developing a web based app that allows the user to open file from the local file system. Since Godot does not support this, i though about using javascript to open the file and pass the contents to godot. This is what i have so far:

extends Control

func _on_Button_pressed():
var content = JavaScript.eval("""
    var input = document.createElement('input');
    input.type = 'file';
    input.onchange = e => { 
        var file = e.target.files[0]; 
        var reader = new FileReader();
        reader.readAsText(file,'UTF-8');
        reader.onload = readerEvent => {
        var filecontent = readerEvent.target.result; // this is the content!
        }
    }
    input.click();
""")

My problem is how to get the content from javascript back to godot.

Answer 1

sorry, i posted twice