@ddulic92 hi Damir! So I looked into the link you shared and the reason is it's using a JavaScript single-page web app in order to render the blog content. Our parser doesn't have support for JavaScript rendered content via the "Article API" yet, however, since the page does provide the HTML in a tag, I was able to configure the domain to work properly.
Parsing webpages is much more of an art than science, and this is the same parser that powers the Instapaper app and website.
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