Comment 6 for bug 1435884

I think the problem is that your system has too old WebKit library that doesn't contain window.requestAnimationFrame functionality [1] ("ReferenceError: Can't find variable: requestAnimationFrame"). I recommend you to upgrade to a system with a newer WebKit library.

[1]: http://caniuse.com/requestanimationframe

If it is not possible, I can try to emulate the missing functionality [2] to make Google Play Music work. However, since the Nuvola Player project is underfunded, the focus of development is entirely on Nuvola Player 3 and I will work on this issue only if it gets funded.

[2]: https://github.com/processing/p5.js/issues/72#issuecomment-25965271

Funding goal: 4 hours of work = €40 EUR

How to contribute:

* You can use a donation form at https://tiliado.eu/nuvolaplayer/funding/#donate-wishlist and mention this bug report

* You can post a bounty at BountySource: https://www.bountysource.com/issues/10167046-empty-google-music-page-with-top-frame-bar

Tasks:

[ ] Reproduce the issue in Ubuntu 12.04 (same webkit version as Elementary Luna)
[ ] Emulate window.requestAnimationFrame functionality
[ ] Publish release Nuvola Player 2.5.1 with the fix.