How to close tab chrome extension?

Question

JavaScript

Hello!
I open a tab with an extension.

chrome.tabs.create({
         url: 'http://kjasdnfjsdf3223.ru',
         active: true,
      });

Since the site kjasdnfjsdf3223.ru does not exist, it will not load.
how to detect it and close the tab?
If the site exists and has loaded, leave it as it is.
Separately, I know what the tab closing function looks like. But I can't figure out how to identify non-existent sites

Answer 1

See what response the site comes with. Successfully received site should be with 200m code. The most popular is 404, and so on. In your case, 500 codes are more suitable