User:CKoerner (WMF)/Page Previews improvements

Improvements to Page Previews
Hello,

We wanted to take a moment to update you all about a reader-focused feature called Page Previews. You might remember it as the beta feature Hovercards. Currently about xx,xxx English Wikipedia users have it enabled - making it potentially our most-enabled Beta Feature of all time. The Readers web team at the Wikimedia Foundation has been working on a few things we’d like to share.
 * Many bugs have been addressed and fixed
 * The code has been refactored (that's fancy developer-speak of restructuring the code to be more performant and stable) (T149801)
 * We’ve performed qualitative and qualitative testing on the feature
 * Made sure Page Previews do not interfere with the functionality of Navigational Popups
 * As both can not be run simultaneously, users of Nav popups will need to disable the gadget in order to try out Page Previews
 * Reviewed feedback from readers across the web

Most recently we:
 * Deployed the new HTML endpoint for generating previews, leading to better rendering of preview content (math equations work, more predictable formatting of information in parentheses, etc.) (T113094)
 * Completed an A/B test on English and German Wikipedias. The results displayed a decrease in pageviews, but an overall increase in page interactions, indicating that users are more likely to explore a larger variety of topics when the feature is on. We also noted decreased usage of the back button and very low rates of disabling the feature.

If you haven’t already, you can enable the feature in your preferences under Appearance. Feedback on how things work for you is welcome. The HTML endpoint change was deployed just last week and we’re very excited to see the improvements. We’re expecting some smaller bugs and edge cases, so please let us know if you notice something out of order. You can find out more about the feature on MediaWiki.org.