A lot of our users are on degraded connections. The site should be fairly fast to load - images that aren’t too large, etc. This is because we serve from and from and even more exotic anti-blocking locations. That is, the same site must be simultaneously accessible from /blah/index.html and from /abc/blah/index.html. The site must be able to be served from any sub-path of a domain. This closes some potential security holes. The site resources must be served from the same domain as the site itself (i.e., no external JS resources, fonts, etc.). The site must be able to be served from static storage (i.e., S3 bucket). For example, CloudFlare found that only 52% of requests from Iran come from “modern” browsers. A lot of our user base uses very old browsers. The site must be somewhat usable by IE7+. The site must support desktop and mobile screen sizes, without using JS or subdomains. (We expect a significant proportion of our users to be running NoScript.) The site must be fully functional without JavaScript. This includes supporting right-to-left languages. The site must support translation/localization.

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