Asp.net static content always caches

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I have a project that uses ASP.NET MVC 5 and angular.js
Recently (though I'm not sure when) changes to my angular.js views are not being reflected in the browser.
When I look at the developer tools in Chrome, it indicates that it is pulling it directly from cache. The Last-Modified header appears to be a couple days old and the ASP.NET server is returning 304 Not Modified for the html file.

Does anyone have any clue why my static content (specifically html files) are being cached by the browser when there *are* in fact changes.

What I have tried:

I have modified the Web.config like so:

XML

<system.webServer>
    ...
    <caching enabled="false" />
    <staticContent>
      <clientCache cacheControlMode="DisableCache"/>
    </staticContent>
</system.webServer>

However, that doesn't seem to make any difference.
I have also checked that the file system is recognizing my changes; the "date modified" on the files are much more recent than the "last-modified" being returned by the server.

Posted 20-Apr-16 6:01am

Sean McIlvenna

Updated 22-Apr-16 4:53am

v2

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Richard Deeming 20-Apr-16 12:56pm

403 means "forbidden"; I suspect you meant 304. :)

Are you sure you're looking at the same folder that IIS is serving the files from?

Sean McIlvenna 20-Apr-16 14:06pm

Whoops! I meant 304. Sorry.
Yes, I'm sure I'm looking at the same directory.

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Stephen Hewison · Answer 1 · 2016-04-22T04:53:00

Take a look at the following guide.

You can control caching by using headers.

Here's what a set of typical response headers look like when the caching is disabled.

HTTP/1.1 200 OK
Server: Apache
X-Rack-Cache: miss
ETag: "e6811cdbcedf972c5e8105a89f637d39-gzip"
Status: 200
Content-Type: text/html; charset=utf-8
Expires: Mon, 29 Apr 2013 21:44:55 GMT
Cache-Control: max-age=0, no-cache, no-store
Pragma: no-cache
Date: Mon, 29 Apr 2013 21:44:55 GMT

This is from the following article which covers the subject in depth.

A Beginner's Guide to HTTP Cache Headers | Mobify[^]