Welcome Back's "Not me" doesn't clear "engrid-autofill" cookie set on the parent domain

[bryancasler]

Report from BC
Looks like the "Not me" feature in Remember Me is not clearing the associated cookie, only the page contents. I believe it did or was supposed to do that at some point so once clicked the identity would be gone. Do either of you know if that was the case @Fernando @Michael

Recording: https://cln.sh/pFbM0yJx
Clicked "Not me" does not clear the "engrid-autofill" cookie set on the parent domain ran.,orgTest: https://act.ran.org/page/90804/donate/1?assets=tc-pagetypes-test&debug=log&test

Response From MT:
Had a very quick look. I think because the cookie is set on another domain for RAN then it doesn’t work. Welcome Back would need to integrate with the remember me iframe to do this I think.

if remember me is on the page with an iframe, it should instead of the current simple cookie.remove("engrid-autofill"); send this to its iframe

      this.iframe.contentWindow.postMessage(
        JSON.stringify({
          key: this.cookieName, // get from remember me options
          value: {},
          operation: "write",
          expires: 1,
        }),
        "*"
      );