I noticed today that hyperlinks in my web app that call up other pages aren’t showing a HTTP Referrer in the HTTP header while using the generated Android app.

Unfortunately, the WebView rendering engine of Android does not send a referer. There are a few hacks (like https://stackoverflow.com/questions/5342399/how-to-send-a-referer-request-in-a-url-for-a-webview), but unfortunately, they only work on specific Android versions and only for the first URL called. As a better way we suggest that you save the current URL in a cookie “last_visited”, which is overwritten or updated by every page (e.g., by PHP or JavaScript: https://stackoverflow.com/questions/17254189/how-to-save-current-url-to-a-cookie-and-restore-with-javascript-onclick). 🙂