Chrome and Firefox felt there were sufficient problems with OpenGL driver availabity that they implemented WebGL using DirectX (via the ANGLE project), despite the more obvious mapping to OpenGL.
Is there any reason to believe that, unlike OpenGL, Vulkan drivers will be sufficiently widespread for browser vendors to use it on Windows?
Intel has no stated intention of releasing production-quality Vulkan drivers for Windows. Forum statement from August:
The current Plan Of Record is that IntelĀ® is not supporting Vulkan on Windows drivers. The drivers that were made available on Developer.com are intended for Vulkan developers.
So, it is expected that some Vulkan drivers may not work for end users.
Is there any reason to believe that, unlike OpenGL, Vulkan drivers will be sufficiently widespread for browser vendors to use it on Windows?