Can't programatically capture Screenshot

[colenso]

I'm using this cordova plugin to try and capture screenshots of my app: https://github.com/gitawego/cordova-screenshot

I noticed that the I only get a black image for some reason. But if I use the normal WebView the plugin works and I can see the normal screenshot.

Here' s the relevant code from the plugin:
View view = webView.getRootView();
view.setDrawingCacheEnabled(true);
bitmap = Bitmap.createBitmap(view.getDrawingCache());
view.setDrawingCacheEnabled(false);

Perhaps webview-plus doesn't support setDrawingCacheEnabled(true)?