Uncaught ReferenceError: importScripts is not defined

Question

Why do I keep getting this error?

I should be able to use this global function right?

http://www.html5rocks.com/en/tutorials/workers/basics/

I\'m usi

Answer 1

I encountered this error as well. In my case, it is because I am testing the code using Karma/Jasmine. Due to the test framework, the worker.js file is loaded by main thread as well.

I avoided this error by wrappig the worker.js file with:

    if( 'undefined' === typeof window){
       importScripts('workerscript2.js');
    ...
    }

Please refer to the comment below by Rob, which offers an alternative solution.