在XmlHttpRequest readyState 4内调用Chrome ChooseEntry

Question

I'm trying to save an image in fileSystem from my blob response but the file dialog is not showing, this is my script:

var xhr2 = new XMLHttpRequest();
xhr2.open("GET", "http://website.org?url=http://www.google.com");
xhr2.responseType = "blob";
xhr2.onreadystatechange = function() {
    if (xhr2.readyState == 4) {
        console.log(xhr2.response); //Blob {type: "text/xml", size: 17830, slice: function}
        $('img')[0].src=window.URL.createObjectURL(xhr2.response); //response image is showing fine

        console.log($('#mydiv').attr('id')+'.jpg'); //suggestedName is 'web:file.html.jpg'
        chrome.fileSystem.chooseEntry({ type:'saveFile',suggestedName:$('#mydiv').text()+'.jpg',accepts:[{ extensions:['jpg'] }] },function(fileEntry){
        //chooseEntry is not creating file dialog
            console.log(fileEntry); //undefined
        });
    }
};
xhr2.send(null);

Manifest.json

"permissions": [
    "http://www.website.org",
    "syncFileSystem",
    {"fileSystem": ["write", "directory"]}
],

Answer 1

Ok, I solved it. Apparently the suggestedName value cannot have the character ':'