javascript - How to close Server-Sent Events events - Stack Overflow

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I want to know how to close a server-sent events via JavaScript. Below is my dummy code:

var ser=new EventSource("path");
ser.onmessage=function(ev){
if(!ev)
   //want to close HERE!!
else
   console.log(ev);
}

I want to know how to close a server-sent events via JavaScript. Below is my dummy code:

var ser=new EventSource("path");
ser.onmessage=function(ev){
if(!ev)
   //want to close HERE!!
else
   console.log(ev);
}

• javascript
• html
• server-sent-events

Share Improve this question Follow edited Sep 4, 2014 at 3:07 JasonMArcher 15k2222 gold badges5858 silver badges5353 bronze badges asked Apr 5, 2013 at 16:57 ahhmarrahhmarr 2,32044 gold badges2727 silver badges3030 bronze badges 2

• developer.mozilla.org/en-US/docs/Server-sent_events/… - the .close() method? – Ian Commented Apr 5, 2013 at 16:58
• 1 sorry i was writing Close() all this time..fixed – ahhmarr Commented Apr 5, 2013 at 17:06

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2 Answers 2

Sorted by: Reset to default 13

Here is the way that I found worked best for me

var eventSource = new EventSource("path");
eventSource.onerror = eventSourceErrorFunction;
var eventSourceErrorFunction = function(event)
{
        if (event.eventPhase == EventSource.CLOSED) {
            that.eventSource.close();
            console.log("Event Source Closed");
        }  
} 

The correct way to close a server side event is with the close method.

https://developer.mozilla.org/en-US/docs/Server-sent_events/EventSource#Method_overview

So you'd use:

var ser = new EventSource("path");
ser.onmessage = function (ev) {
    if (!ev)
       ser.close();
    else
       console.log(ev);
};

JavaScript is case sensitive, so you can't use .Close(), as it's a different thing than .close() and will be undefined in this case.

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