How do I invoke canvas' recording download on NW.js?

I have an app that records canvas using UserMedia. Then, you left click, and it prepares the webm for download. The last step would be to invoke the download through the browser object, BUT - It does not work when exported to NW.js (while it does work on NW.js preview, which is odd.) Please help me save the resulting webm in NWjs.AppFolder.

Conclusion 1 : NWjs's Write file does not work, instead, it makes a corrupt webm.

You possibly should add the "NW.JS" object to your project, and instead of invoke download, try to "write file" UserMedia.CanvasRecordingURL.

I haven't tried it, so no guarantee it will work.

The NWjs is already in.

Thank you, will try.

UPDATE : It doesn't work. The video saved is only 64bits of size and is corrupt.

Please help with a solution, my app is very dependent on canvas recording...

Im not quite sure but maybe you need to retrive url of recording then save it, now its saving the url but you need to request it with ajax and then save retrived content