Closing a transaction or signature approval window no longer rejects the request; only Cancel does. The browser can close that window when the user clicks away, for example to copy the password from a password manager. The request stays pending and the site gets no answer. Pressing the toolbar button opens the oldest such request, unless an approved attempt still holds it. A Reject the background refuses keeps the window open with the background's message. The worker points the toolbar back at the wallet when it starts. While such a request waits, the transaction slot stays held, so another site's eth_sendTransaction gets -32002. An address switch still rejects pending approvals with 4001. Model: opus-5-5