SupportFlash
Corex\Guides\Support\SupportFlash · class · Add-ons layer
What the support form’s outcome has to carry across the POST/redirect/GET (spec 087, FR-007). User-bound (the key holds the user ID), short-lived, and read once — {@see take()} deletes before returning, so a second tab cannot show the first tab’s result and a back-button visit shows the plain form rather than a stale confirmation. The message travels here rather than in the query string because it is the person’s own words, and a query string is written to the server log, kept in browser history, and forwarded in Referer headers.