Filter Popups

popup_blocker.js.coffee

# Do nothing, silently, when window.open is called
window.open = () ->

popup_filter.js.coffee

# Whitelist pop-ups with urls that match this regular expression.
allowableUrls = /addthis|google/

# Save a pristine copy of the window.open method.
aliasWindowOpen = window.open

# Create a new window.open method that is filtered by url.
window.open = (url, name, features) ->
  aliasWindowOpen(url, name, features) if url.match(allowableUrls)