rails/strong_parameters — pull request #26 by nvloff (2012-07-27 14:17:04+00:00)
Title: Strict params

Return "Bad Request" when posting parameters that are not permitted. The behaviour is similar to attr_accessible where updating protected params raises an exception. Using this is easier to migrate projects to strong_parameters since forgetting to permit a parameter just fails silently.

The usage is the same as 'permit', except it's 'strict'