Disable Caching For A Single JS File Using Web.config

Question

I currently cache everything possible on my site (images, JS, CSS). There is only one JS file that I need to be loaded fresh every single time. How do I omit just one file from caching, using web.config, whilst leaving everything else cached?

Note that I tried another link here, and it didn't seem to stop the caching of my file: How do I disable caching of an individual file in IIS 7 using weserver config settings

Answer 1

How about:

<configuration>
  <location path="path/to/the/file.js">
    <system.webServer>
      <staticContent>
        <clientCache cacheControlMode="DisableCache" />
      </staticContent>
    </system.webServer>
  </location>
</configuration>

(Note that the path is relative to the web.config file)

Answer 2

I don't think you can do it using web.config, but you could add a unique querystring parameter to the javascript url in order for it to be loaded every time:

If you are using ASP.NET

<script src="mycode.js?<%=System.Guid.NewGuid.ToString()%>"></script>

Answer 3

Set the path for it not as a static URL but get an ASPX page to serve the script. Inside your ASPX page just send back the text:

byte[] javascriptTextBuffer = GetMyJavascript();
Response.ContentType = "text/javascript";
Response.Write(javascriptTextBuffer);

Inside the page turn off caching .

Having said that, it seems to me that you are doing something wrong that have to load the JavaScript file everytime. Make scripts static but use parameters to drive versatility.