Google appears to have removed the flags option "Enable Show Saved Copy Button" (the #show-saved-copy flag) in Chrome. I don't know when they did it, but I'm not seeing it in version 75. Is there another way of enabling viewing of pages in your cache (ie: you've been there once, now you are offline... ) ?
I'd had been using it for years with a single page web app (SPA) that needs to function offline. I built the app and there are tons of pages that reference it as recently as 2018.
How can I restore this functionality in Chrome?
Perhaps this would be an integrated feature? I tested and it does not work.
chrome://flags/#enable-new-download-backend does not appear to give offline functionality.
My testing involves: CNN.com (any random website), letting it fully load, then closing Chrome. Next, I disconnected my wifi, opened chrome, and went to CNN.com ... I got the standard 'offline' error message.