Template:HD/url

URLs containing certain characters will display and link incorrectly unless those characters are encoded. For example, a space must be replaced by.
 * Single apostrophes do not need to be encoded; multiples will be parsed as italic or bold markup

The link button on the enhanced editing toolbar will encode a link.

The URL must start with a supported URI scheme. and  are always supported. ,,  ,  ,   and   will create a link and an icon but require an agent registered in the browser.