How to use deactivate Webrick's SSL

Question

Last week I tried to debug with SSL activated in webbrick, but I forget how to restore the settings to default(without SSL). Every time I visit a controller, now it shows:

Answer 1

I had a similar issue but wasn't able to fix it by clearing cookies on Chrome (nor any other fixes like rake tmp:clear), and ended up switching to using thin with SSL enabled as suggested in this post:

https://stackoverflow.com/a/11614213

Added this to my Gemfile:

group :development do
   gem "thin"
end

Then bundle and thin start --ssl.