Security issue: failed login exposes credentials

[mongrelion]

After a failed attempt at logging in, the application shows an alert informing that something went wrong with my login, but also it redirects me to the following URL: http://a6b0a65fc651111e69a2f0a688e86a8f-4906602.eu-west-1.elb.amazonaws.com/index.html?username=user&password=password