TIL: g[how to reset the image that twitter has for a url og]
==> @mitostudios: “you can “trick” the twitter [cache] by adding some extra parameter to the end of the url such as “?123” (minus the quotes) so you would enter"
Note: card validator is deprecated
I used this trick here, to force Twitter to share my current og:image
for the page (a screenshot of the chapter of my dissertation) rather than my default one for the website (my big face). The link is actually to: https://danielsgriffin.com/diss/owning_searching.html?123
(admittedly not very clean; clearly I could use anything in the query string)