* Facebook
**Private or public? If private, sandboxed, or test accounts?
**Test with "Secure browsing (https)" (on https://www.facebook.com/editaccount.php?ref=mb&drop ) enabled and disabled
* Twitter
** Enable "HTTPS Only | Always use HTTPS"(https://twitter.com/settings/account)
** Length of pre-populated tweets in en-US and other locales (l10n)
** Unescaped vs. escaped characters (string literals)