HTML5 Web Worker does not work on Mobile Safari iPad 4.2

Question

I cannot make an instance of Worker on Mobile Safari on an iPad with OS 4.2x

This is a very common and well-known HTML5 Web Worker demo: http://html5demos.com/worker

When I try to run I get the error ReferenceError: Can't find variable: Worker

This demo works fine on desktop Safari. My understanding was that with OS 4.2x that HTML5 Web Workers would be supported on mobile safari. Does anyone know different?

Answer 1

At the moment WebWorkers are against Apple's policy on JavaScript runtimes. Even if it were supported it would be thrown out after 10 seconds as the maximum, non-blocking runtime.

Answer 2

According to caniuse.com, it's not yet supported