UnhandledPromiseRejectionWarning on invalid url

[sseppola]

Probably the same as #2, but to provide more detail:

Here's a snippet of the code I'm running:

try {
  let url = 'http://googlecom'; // <-- invalid for the demonstration
  const siteInfo = await openGraph.getSiteInfo(url);
  console.log(siteInfo); // => undefined
} catch (error) {
  console.error(error); // never runs
}

What's worth noting is:

• siteInfo resolves to undefined
• I get an UnhandledPromiseRejectionWarning from node
• this code does handle the promise rejection correctly, so I suspect this library doesn't.

Here's a screen shot of the error I get:

In particular, note the warnings:

UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)

and

[DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.