I can't seem to find a way to link to pages containing non-Latin characters in URLs.
For example, Tåg.info (with an å). The å is required, since tag.info is a completely different website.
Using the normal link mechanism (Ctrl+L) doesn't allow me to publish the post, I receive a message
Your post contains the invalid external link http://t%C3%A5g.info. Please correct it.
I can't even paste the URL directly in the text either. Very frustrating.
My browsers don't have an issue with this escaped URL though (Firefox 18 and Chrome version-of-the-day).
I've seen this other related question, but this doesn't work either:
As a workaround, I can use the Punycode version
however Firefox does the conversion to and from Punycode transparently, so there's no easy way to generate this URL, and obviously it's not very user-friendly. Chrome doesn't, though, so internationalized URLs result in Punycode.
In case it's important, this is for a post on Travel-SE, and links to non-English websites are not uncommon.