• Added the Audio named constructor.
• Fixed the Image named constructor to follow the spec more closely (e.g. Image.prototype is now equal to HTMLImageElement.prototype).
• Fixed the tabIndex setter, which regressed in 9.1.0, to no longer cause errors.
• Made submit buttons and labels respond to click event cancelation correctly, preventing form submission and re-dispatching to the relevant form control. (@marcandre)
• Fixed unhandled errors thrown in XHR event handlers being swallowed; they now properly are redirected to the virtual console.