Nicer error message when no certs could be found for a site

[saxbophone]

I tried this with my own very simple site, which has no HTTPS at all.
https://shaaaaaaaaaaaaa.com/check/saxbophone.com

Instead of saying no certs could be found or something similar, it says Argh, there has been an error and advises me to check the console.

Checking the console reveals that no certs could be found, but it'd be nice to see this in the UI.

[konklone]

It's a good idea! If anyone wants to tackle this, they're welcome to - I won't have time to do this in the near future.

[rajatRS]

I have made a pull request, fixing this. Please, see If its good enough for you to merge that and do let me know your views. :)

[saxbophone]

I should hasten to add, that saxbophone.com may no longer present a good test case as I now have HTTPS on that domain...