<label>Homepage: <input name=hp type=url list=hpurls></label>
<datalist id=hpurls>
 <option value="http://www.google.com/" label="Google">
 <option value="http://www.reddit.com/" label="Reddit">
</datalist>

it seems v.nu has two bugs with datalist  
one parser bug where "any other end tag" doesn't imply </option>  
and list=foo doesn't work  
afaict from the spec </option> should be implied  
there's no entry for "datalist" end tag, so it gets handled by "any other end tag"  
whose steps run through once without doing anything but changing "node" to the next in 
and then returns to step 2 which generates implied end tags