Passing Gestures to a Web App?

App Development and Programming

I'm building a web game and want to know how one can pass all their gestures through to the webpage while still keeping Voice Over on?
For example, on NVDA on Windows, you can press NVDA+Space to pass all keys to an input element. Is there a similar functionality with Voice Over?
If not, what is the best way of asking users to pass their gestures to the app? Should I ask them to open a page that captures all input, then turn off Voice Over?

Also, is there a way to have swipe gestures simulate keydown events like ArrowUp? Or do I need to create an interface using the touch API specifically?