caching using Javascript

Question

I am using IE 7.0. I want to clear the cache for every new request. So i need java script code for clear the cache. In IE i am using one setting to fix the caching issues. This is location: Tools-Internet Options-Browsing History Settings-Every time i visit the web page-Ok. It works fine for the current IE browser. Now I need to implement this concept using Java script. Please suggest me.

Response.Buffer = False
Response.CacheControl = "no-cache"

I tried, but not working.

Do you control the requests to the JavaScript, like are they AJAX calls? — Lloyd
– Lloyd, Commented Jan 14, 2013 at 12:07
How come you are still using IE7? Microsoft stated that they would auto-upgrade users to IE8/IE9, depending on your operating system (reference: computerworld.com/s/article/9222811/…). — starbeamrainbowlabs
– starbeamrainbowlabs, Commented Jan 14, 2013 at 12:46

James Hill · Accepted Answer · 2013-01-14 12:07:37Z

1

You can't clear the cache using JavaScript. You can, however, trick the browser into thinking the page is different than what is stored in the cache by appending a number to the end of the URL.

So, for example, if you want to ensure that the browser is using your latest JS, append a number to the end of the source attribute (a different number will be needed each time you wish to "trick" the browser caching):

<script src="myScript.js?1" />

If you want to clear the cache for the entire page, you need to be asking a different question: How to control caching with [enter server-side language here]?

Note: Your new question, if needed, should be asked in a new question on SO.

answered Jan 14, 2013 at 12:07

James Hill

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11 Comments

Lloyd Over a year ago

You mean append a number that changes. Appending the same number all the time would be a fail ;)

James Hill Over a year ago

@Lloyd, I thought it was obvious. I updated it for clarity. Thanks in advance for your upvote :P

Indrajeet Over a year ago

But where i can found myScript.js file. Actually i did the IE setting then its works fine. But still issues.

Lloyd Over a year ago

Yeh it was to me, I knew what you meant but gotta be clear for others that's all.

Lloyd Over a year ago

@user1304807 How are you doing the requests? Are they static script inserts or something dynamic?

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