• It handles dynamic sizing of the iframe, so the widget will snap to its content based on usernames, follower-counts, adjustments to text size, and changes in design.
• It supports Web Intent Events, which require code running in the host page to receive and interpret the events.
follow_buttom.1234abcd.html, with a hashed code in the file name. We then tell that browser to cache that file forever, and it will be reused on every web page that has a follow button until we push new code, at which point the hash changes. Referencing the frame directly means you don’t get the benefit of such aggressive caching.
Thanks! This is really helpful!