Has there been a change in the way URLs are handled in a Xomblurb link field? Today I tried to post an article URL and it was rejected with the message "not a valid URL". What does that actually mean?

I couldn't find a similar titled Xomblurb which may potentially have had the same URL, so I'm assuming it wasn't a duplicate URL. If it was, then would be helpful if the message was more explicit so could possibly abandon posting that Xomblurb.

So I'm wondering if the URL parser is now not accepting php or asp scripts within the URL. This is common with some news sites as they fetch articles from their database with some code so that the URL has something like "/article.asp?id=12345"

Well, there is always the solution of tinyurl, which works but I don't particularly like using it as I myself will rarely click a tinyurl link as there is no way to know where it will point.

Any advice? thanks