Remember when I declared js;dr?
#AMP: “not include author-written JavaScript, nor 3rd-party scripts”
https://www.ampproject.org/how-it-works/#not%20include%20any%20author-written%20JavaScript,%20nor%20any%20third-party%20scripts
Background: tantek.com/2015/069/t1/js-dr-javascript-required-dead
However, View Source on ampproject.org/how-it-works, and they’ve still got some work to do, e.g. their misuse of <blockquote> for second level headings, e.g.:
<blockquote>AMP HTML is pretty fast.</blockquote>
Remember in the 1990s when presentational web authors would use "blockquote" to mean, "indent this"? @Zeldman remembers.
HTML has a high performance element for second level headings.
Curiously enough it’s called <h2>, e.g. that AMP Project page should be using:
<h2>AMP HTML is pretty fast.</h2>
But this is any easy fix. I’m sure it was a minor oversight.
Because why would someone worried about size & performance use 20 characters of open close tag names, when 4 would do?
Consider this an open challenge, what else can you cut from AMP?
@KevinMarks already has some suggestions: http://www.kevinmarks.com/ampreaction.html