URL polyfill not executed in jsdom and older browsers

[unional]

jsdom implements Blob and URL but not URL.createObjectURL: jsdom/jsdom#1721

Thus the following code prevent createObjectURL to be polyfilled.

	if (view.Blob && view.URL) {
		try {
			new Blob;
			return;
		} catch (e) {}
	}

Could the same thing happens to older browser?

Can I submit a PR?

This cause jspdf not able to run in jsdom

[jimmywarting]

Can this be closed?

[unional]

I'm not sure at the moment. Will see if I can dig up the test to validate it. Thanks for asking. 🌷