Illegal Constructor (Blob) when working with Jelly Bean Android (Cordova)

[nhunzaker]

I've had a lot of success using this library with Cordova on iOS and newer versions of Android, however I've noticed an error is thrown in older versions of Chromium (the web view used by Cordova). I've had to (more or less) add this work around in all cases:

try {
    blob = new Blob([buffer], { type: mime });
} catch(e) {
    if (window.BlobBuilder){
        blob = new BlobBuilder();
        blob.append(buffer);
        blob = blob.getBlob();
    } else {
        throw "No Blob or BlobBuilder constructor.";
    }
}

In particular, this is a problem for me here in filer.js:794-795

I'm not really sure how fantastic this solution is. Do you know of a better method of approaching this?

[nhunzaker]

I went ahead and made the modifications in a fork. https://github.com/nhunzaker/filer.js/compare/ebidel:master...master

Preliminary tests pass in modern Chrome and Chrome for Android, but I'm pretty sure the version of Chrome I'm on is more modern than the web view. Regardless, this definitely resolved the issue I was having.

[shenzhuxi]

It will be great to have filer.js work with org.apache.cordova.file.
Cordova uses a new URL scheme cdvfile://localhost// now http://cordova.apache.org/news/2014/02/10/plugins-release.html.

[nhunzaker]

I'm going to close this out. I'm not really sure if there is anything actionable at this point and I don't have anything new to contribute.