Preventing AJAX calls to be cached in Google Closure Library

Question

I can't find the way to turn off browser (and sometimes server "304") cache in GCL AJAX calls, like I've done in jQuery.

$.ajax({ url: "test.html", cache: false, });

Maybe I can control headers somehow?

I do not appreciate answers like adding a random string to a GET paramether manually. Like:

requestObject.send("/feed/get?id=" + id + '&nocache=' + new Date().getTime());

Seyeong Jeong · Accepted Answer · 2011-12-01 23:26:59Z

2

Cache option in $.ajax puts a timestamp in a GET parameter.

However, you could put Cache-Control: no-cache in the request headers when you are calling the send() method.

answered Dec 1, 2011 at 23:26

Seyeong Jeong

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4 Comments

Dan Over a year ago

Could you please add some code sample? I really can't find how to add cache-control

Seyeong Jeong Over a year ago

Try: goog.net.XhrIo.send(url, opt_callback, opt_method, opt_content, {'Cache-Control': 'no-cache'}, opt_timeoutInterval)

Dan Over a year ago

Thanks for that code sample! (PS: how nice jQuery code looks compared to GCL)

Dan Over a year ago

This question would help a bit clarifying optional parameters: stackoverflow.com/questions/8356227/…

Cheeso · Accepted Answer · 2012-03-09 10:05:08Z

Assuming you are using xhrio to do the ajax, another way to do it is to set the header after you instantiate the xhrio.

var requestObject = new goog.net.XhrIo(); requestObject.headers.set('Cache-Control', 'no-cache'); goog.events.listen(requestObject, goog.net.EventType.COMPLETE, function(e) { var obj = this.getResponseJson(); }); requestObject.send('http://example.com/jsoncontentsource');

Sadly, this doesn't work for me. Even when setting the headers, IE9 seems to cache the request. Only the QueryString seems to work :(

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