This submits straight from REDCap's own page — no API, and your data still goes only to REDCap (never through this host). It just clicks REDCap's real Submit for you, so there's nothing to review.
One-time setup — drag this to your bookmarks bar: ⚡ Submit to REDCap
Can't drag it? then make a new bookmark and paste it as the URL.
If your managed browser blocks bookmarklets, REDCap's own Submit button on that page still works — nothing is lost.