How to prevent js/css caching in IIS

Question

Am developing a website in asp. So as of now as it is development time I don't want to cache my js/css as it will be undergoing changes.

But after deployment it is better to have caching as it is a longer run process.

Is there a single setting to accomplish this, preferably in IIS server.So whenever I need to take a fresh copy I just enable the setting in IIS

This has been a bottleneck for us as I need to instruct my client to do a cache clearing. Any help will be appreciated

Sain Pradeep · Accepted Answer · 2015-03-31 06:42:15Z

2

Change the URL of css and js every time.Browser detects a different url and will not load the cached stylesheet/JS. You can change URL by simply adding random query string at end of URL.

http://mysite/style.css?Version=1
http://mysite/file.js?Version=1

answered Mar 31, 2015 at 6:42

Sain Pradeep

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3 Comments

Robert_Junior Over a year ago

But what if i want caching. I need to change code. Is there any setting in IIS

Sain Pradeep Over a year ago

Just remove the random query string from URL before making live. IF URL not change then browser will load the cache content.

user3285954 Over a year ago

@Robert_Junior Whenever the content of a file changes the version (timestamp, hash, random number) has to be modified. Therefore it will be safe to cache mysite/style.css?Version=1 because will never change, if style.css will be modified the link will become mysite/style.css?Version=2, mysite/style.css?Version=3 and so on and browser will load the new content. You may want to look at bundling too.

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