Last modified: 2012-09-20 00:09:40 UTC
Right now when we fail due to an API error (for example, the page being already deleted), we show a generic error message. We should pass the exact error.info message to the user so they can figure out what went wrong (hopefully). This would mostly involve changes to handleError and the code that calls it.
Fixed in https://gerrit.wikimedia.org/r/#/c/24391/