[throwaway2048]

that doesn't solve the problem that webGL is both very slow, and is completely nonfunctional for a large amount of users.

https://www.khronos.org/webgl/wiki/BlacklistsAndWhitelists

[daredevildave]

Define large? You need a graphics driver more recent than Jan 1, 2009.

And slow compared to what? Flash? Canvas 2D?

[throwaway2048]

lots of systems are that vintage or older, and do not have update-able graphics drivers due to being laptop OEM specific stuff (this was the case for all nvidia/ati mobile chips until recently, the OEM provided the driver, generic nvidia/ati drivers cannot be installed).

[NTripleOne]

Compared to the unity browser plugin or a native executable.