jch/html-pipeline — pull request #98 by aroben (2014-01-13 15:46:00+00:00)
Title: Allow customization of allowed <a href> URL schemes

A new context parameter, `:anchor_schemes`, can be used to override the default list of allowed schemes.

Note that this means that these schemes are no longer configurable via the `:whitelist` context parameter. They can only be controlled via `:anchor_schemes`.