Ignore URL ends

I've encountered this so many times when trying to highlight notes on one of the main site I use for studying. In some links they have URL structure looking like this:

`http://website.com/url-path`

But in some links, when I want to go to the same URL, the link has the `.html` at the end, like this:

`http://website.com/url-path.html`

Liner sees it as 2 different sites, while those are exactly the same. I guess the same applies to `.php` etc.

It would be really good to tell liner to just ignore the "extension" in the URL