approach for supporting webworkers in older browsers

[Shell Bryson]

Having experimented somewhat with Webworkers in Google Chrome, I can see a lot of potencial. However, I'm cautious about moving forward due to the lack of support in older browsers.

So my question:
Application design wise, what would be the best approach to building a modern cross-device web app leveraging Web Worker support without sacrificing support for legacy browsers?

(obviously not expecting detail! that's what the book is for.)

[Eric Pascarello]

I just looked at the TOC, it does not look like this is covered. Maybe I missed it.

Eric

[Ido Green]

The book contain information around it :)
You will want to leverage Modernizr and do something like:
if (Modernizr.webworkers) { // window.Worker is available! } else { // no native support for web workers }

The main problem is what do you do in these older browsers...
and for that, you need to see what will be the right solution for your case so your site/web app will do 'graceful degradation' and the user won't suffer.