Detect whether postMessage can send objects?

Question

I\'m looking for a neat way to detect whether postMessage in the browser supports the sending and receiving of objects or just strings. I figure that someone out there must

Answer 1

postMessage also works between iframes; assuming that the behavior is the same between workers and frames, you should try the following or something like it:

You may need to replace console or console.log to be able to see results, but on Chrome, this gets me

listener attached about:blank (1):1
asdf about:blank (1):1
Object {whatAmI: "an object, maybe?"} about:blank (1):1

when I save it to a local file and open it up.

The jsfiddle version (and the version which uses an actual worker) are left as an exercise for the reader. :)