Re: [JSMentors] Image polling through Javascript

[Marc Palau]

Try with:

|   beacon.src = 
"http://www.google.co.in/logos/2010/lennon10-hp.gif?"+Math.random();

cheers
|



En/na Amit Agarwal ha escrit:

Hi every one,

I need to poll an image using javascript and need to perform an action once the image is found at its position. This is the code I have written for this task.

|/*----Image handling script starts here----*/

var beacon = new Image();

beacon.onload = function() {

console.log('Image found'); console.log(this.width,this.height);

    window.clearInterval(timer);
};

beacon.onerror = function(){ console.log('Image not found');

}
var timer = window.setInterval(function(){


    console.log('sending the request again');
    beacon.src = "http://www.google.co.in/logos/2010/lennon10-hp.gif";;


},2000);
/*----Image handling script ends here----*/
|

Problem is that, after one GET request, the response gets cached and requests don't get sent everytime I set src. If you examine NET tab, it sends request only on first src set and caches the response.

I need to send a fresh request for image every time my code sets the src. Any workarounds?

-Regards
*Amit Agarwal <http:///www.amitagrwal.com>*
+91-779-822-8765

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