title: Force cache flush in browser
body: <p>I just made quite a large update on a website that uses asp.net. In the new update I have changed a lot of the code so that I use jquery instead together with asp.net web service. Many of my users have problems with that the new update doesn't work until they flush all cache in their browser. As it's a lot of work to tell everybody to flush their cache, maybe I can force a flush when they load the new update?</p>
  
  <p>A typical ajax call that the user have problems with is:</p>
  
  <pre><code>$.ajax({
      type: "GET",
      url: url,
      dataType: "json", cache: false, data: "{}", contentType: "application/json; charset=utf-8"....
  </code></pre>
  
  <p>On the server machine I log the errors and it looks like this:</p>
  
  <pre><code>Error Message: There was no channel actively listening at 'http://www.domain.com/Service.svc/get?date=2010-01-12&amp;_=1263327373122&amp;{}'. This is often caused by an incorrect address URI. Ensure that the address to which the message is sent matches an address on which a service is listening.
  </code></pre>
  
  <p>The "_=1263327373122" part shouldn't be there at all.. When the user have flushed their cache it works perfect again. How can I fix this problem?</p>