Open through TikTok iOS's Learn more flow. Use a fresh test for each case.
1. Centered popup — stay in the webview 2. Centered popup — press native Back after 2–3s 3. Fullscreen popup — stay in the webview 4. Fullscreen popup — press native Back after 2–3sThe hold starts when the popup destination reaches the server. It is not a timer started by the Back press.