What I want to do is use JavaScript (or some other client-side way) to listen for events occurring outside the web page without server-side help. It might look like this:
// tester.js
cses = new ClientSideEventSource("JSEventSource.js");
cses.onmessage = function(event){
// do something
}
// JSEventSource.js
CSES_return("CSES has been run!");
// note how this is client-side
The problem here is that this is all imaginary because those functions (sadly) don't exist. AJAX calls to JS files don't work. Here is an example of it's usage:
function getNotifications()
{
var cses = new ClientSideEventSource("JSEventSource.js");
cses.onmessage = function(event){alert(event.data)}
}
function sendNotification()
{
CSES_return("You have got a notification!");
// this does not give an error even if this is not used in CSES mode
// which is started with: new ClientSideEventSource("jsfile.js");
}<!DOCTYPE html>
<html lang="en-US">
<head>
<title>Test</title>
<meta charset="UTF-8"/>
</head>
<body>
<button onclick="getNotifications()">Get Notifications</button>
<button onclick="sendNotification()">Send Notification</button>
</body>
</html>
<!-- You will get errors because ClientSideEventSource and CSES_return do not exist -->That is basically a messaging system (with a certain message) that doesn't use any Server-Side code. Is there anything to replicate this?
