Standard functions not working in web worker

Question

I am trying to implement web workers in my application but for some reason functions like alert and console error with undefined.

My web worker code:

AJAX = new XMLHttpRequest();

AJAX.open("GET", 'Record/fetchEntity', true);
AJAX.send();

var result = AJAX.responseText;
console.log(result); // Errors with 'console is not defined'.
self.postMessage(result);

By the way, result is an array of objects. Will this pass back ok to the master the way I have done it?

Because they are not supported in the web worker. – epascarello Mar 13 '13 at 13:26 — epascarello, Mar 13 '13 at 13:26

score 2 · Accepted Answer · answered Mar 13 '13 at 13:31

Web workers have no direct access to the browser or DOM. There is a specific subset of browser related functions that they can access listed here in the MDN documentation

atob()
btoa()
clearInterval()
clearTimeout()
dump()
setInterval()
setTimeout()
XMLHttpRequest()
Worker()

Other than that they can only access the core standard JS functions and a few extra worker things

importScripts()
FileReaderSync()

Standard functions not working in web worker

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