Web workers not spawning sub workers in firefox 10

Question

I've been trying to use web workers in Firefox 10. The example on the Mozilla site computes Fibonacci numbers (in this case, the 5th Fibonacci number - 5):

https://developer.mozilla.org/En/Using_web_workers#section_11

When I click the link to go to the example page: https://developer.mozilla.org/samples/workers/fibonacci/ I get the correct output of 5. When I copy and paste the source code into a new file on my desktop, along with the associated worker script (fibonacci.js), it won't work beyond the third number (ie worker.postMessage("3");). I've tried running it off my web server with the same result.

What might be the problem?

Answer 1

in the script, when n >=3, it spawns a new worker. But spawning sub workers isn't supported in Chrome/Safari yet.

https://developer.mozilla.org/en-US/docs/DOM/Using_web_workers#Spawning_subworkers

Which Browser are you trying it on ?