Avoid crashing when used in SSR

[matanui159]

Contributing to Twilio

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Pull Request Details

Description

When using this library in frameworks like Next.js that uses the same code for both client-side and server-side rendering, it will make the server crash even if not using any of the exports. This is because it does not check for the existence of window before checking its properties.

This adds a small !!window to the isSupported test.

Burndown

Before review

• [ ] Updated CHANGELOG.md if necessary (TODO)
• [x] Added unit tests if necessary
• [x] Updated affected documentation N/A
• [x] Verified locally with npm test
• [ ] Manually sanity tested running locally (TODO)
• [x] Included screenshot as PR comment (if needed) N/A
• [x] Ready for review

[matanui159]

This is actually causing more trouble than it is solving. It would be nice for this to work, also for worker support, but I don't have the energy to fix all the issues. I so far have found these two:

• window used to define the global Twilio
• something about resolving encoding in node-fetch