I have an php-based web page which auto-refreshes, and, I need to detect whether the user has manually refreshed the page. This is because I am using audio embedded within an iframe to sound alerts and for that to work reliably with Chrome, web page interaction by the user is required (to enable the audio to sound). The interaction is initially satisfied by the user pressing a form button to enables audio alerts (in Chrome). However, if the user manually refreshes the web page later, the audio is disabled (unless the user subsequently clicks the web page again). Am working on finding a solution.
Am still experimenting and looking for solutions…..