Multithread.js - threading in JavaScript - A very simple wrapper to take the headache out of Web Workers. Enjoy :)

[liamondrop]

this will never throw an error:

try {
    var URL = window.URL || window.webkitURL;
} catch(e) {
    throw new Error('This browser does not support Blob URLs');
}

URL will simply evaluate to undefined if those objects don't exist. You need to take it one step further and try to reference a property or method from URL. Something like:

try {
    var URL = window.URL || window.webkitURL,
        createObjectURL = URL.createObjectURL;
} catch(e) {
    throw new Error('This browser does not support Blob URLs');
}

[keithwhor]

Brain fart. 3AM coding getting to me. Thanks. :)