No-Op in a worker

[jasonLaster]

Do you want to request a feature or report a bug?
bug

What is the current behavior?
Currently, addStyles errors when running in a worker context.

If the current behavior is a bug, please provide the steps to reproduce.

1. add require("styles.css") to foo.js
2. new Worker("foo.js")

What is the expected behavior?

addStyles is a no-op in the worker context and does not try to add the stylesheet.

[michael-ciniawsky]

@jasonLaster See #201 for the general plan regarding addStyles, maybe this could go hand in hand, tbh I'm not really familiar with Web Worker's atm, any help or PR even for discussion/testing is highly welcome :)

I have seen the PR 😛

[michael-ciniawsky]

Closing according to #201