URLs must begin with a supported URI scheme: http:// and https://will be supported by all browsers; irc://, ircs://, ftp://, news://, mailto: and gopher:// will require a plugin or an external application. IPv6 host-names are currently not supported.
URLs containing certain characters will display and link incorrectly unless those characters are encoded. For example, a space must be replaced by %20.
| sp | " | , | ' | ; | < | > | ? | [ | ] |
|---|---|---|---|---|---|---|---|---|---|
| %20 | %22 | %2c | %3a | %3b | %3c | %3e | %3f | %5b | %5d |
- 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.
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