Don't pass referrer header to twitter when sharing
Don't pass referrer header to twitter when sharing

The Action Center embed url can be super huge. In general, we should pass a
link to a stylesheet instead of putting all the styles in the url, but this
will help prevent HTTP 431 from Twitter when the url gets big.

EFForg/action-center-platform,EFForg/action-center-platform,EFForg/action-center-platform,EFForg/action-center-platform