I was putting together a [question on stackapps (quickly answered)](https://stackapps.com/questions/2930/how-do-i-get-a-filter-to-let-through-the-fields-i-specify) asking about the new API filters. I wanted to link to some relevant API docs pages with the filters already specified, but it refused to recognize the URL in the markdown.

```
http://api.stackexchange.com/docs/sites#filter=!6ot9yf2tHd-0A(WH5pXrL9xuH_(.UL3EF-uBGL&run=true

```

Attempted as markdown: [some url](<http://api.stackexchange.com/docs/sites#filter=!6ot9yf2tHd-0A(WH5pXrL9xuH_(.UL3EF-uBGL&run=true)>

I don't deny the filter ID makes these URLs very ugly, so maybe it isn't supposed to work with exclamation points and parentheses. I simply ran the URLs through a shortener to fix the issue.