HTML5 Server-Sent Events
SSE
demo
https://www.w3schools.com/html/tryit.asp?filename=tryhtml5_sse
https://www.w3schools.com/html/html5_serversentevents.asp
<!DOCTYPE html>
<html>
<body>
<h1>Getting server updates</h1>
<div id="result"></div>
<script>
if(typeof(EventSource) !== "undefined") {
var source = new EventSource("demo_sse.php");
source.onmessage = function(event) {
document.getElementById("result").innerHTML += event.data + "<br>";
};
} else {
document.getElementById("result").innerHTML = "Sorry, your browser does not support server-sent events...";
}
</script>
</body>
</html>
HTML5 media tags
https://www.w3schools.com/html/default.asp
video, audio, picture,
object, embed, figure, source, track,
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